A young man's confession to participating in a plot to murder another teenager stuns police in a small Florida town; detectives uncover a plot involving a manipulative ex-girlfriend and a young psychopath with the desire to kill.

After the murder of a successful executive one night in Connecticut, her case goes cold; four years later, a troubled man appears, ready to confess; investigators uncover this was no ordinary murder and that he's an impulsive psychopath.

Josh Clark takes what he wants; his family loves and supports him, but he's intent on destroying them; no one sacrifices more for him than his grandmother, yet she's the one who suffers his wrath; now, his mom and brother want him to tell them why.

Law enforcement officials try to get a convicted serial killer to reveal where he left the body of Sara Anne Wood, a 12-year-old girl he murdered 30 years ago.

A road rage incident turns deadly as an elderly man is beaten to death by a teenager who claims he was acting in self-defense; detectives not only find holes in his story but uncover that he is a remorseless and manipulative psychopath.

After the murder of a rural Virginia couple and the disappearance of their adult son, detectives wonder who could have acted with such rage; when the son resurfaces, investigators come face to face with a true psychopath.

Teresa Holman spends much of her childhood wishing her father, Freddie Bowen, would die for the things he does to his family, but when presented with a chance to get her wish, the choice she makes has unforeseen consequences and leads to tragedy.

A small-town cashier's life turns into a nightmare when her stepmother and stepbrothers move in, then she goes missing, leaving her family to wonder if she left to start a new life.

Life with their beautiful daughters is a dream come true for an optometrist and his wife, but the dream soon becomes a nightmare.

Unraveling the mystery behind the confusing evidence at the scene of April Holton's tragic murder.

As seen in home videos, the Snyders are thrilled when their 34-year-old son, Mike, finally starts a family with his sweetheart, then Mike vanishes after being diagnosed with a terrible illness, and his horrific fate comes to light only years later.

Dr. John Hamilton and his wife, Susan, are successful, respected and very much in love, until a vicious Valentine's Day murder destroys their lives; never-before-seen home videos shed light on a brutal murder no one saw coming.

After witnessed with a mysterious stranger, a beautiful teen girl completely vanishes from her small town, turning up brutally slain days later in the Nevada desert; the search for her killer envelops the entire community, and fear abounds.

In December 2003, police respond to a mysterious 911 call at a home in Mansfield, Texas; when authorities enter, they discover two bodies; the key to finding the killer is within one of the victim's grasp.

After moving to a new city following her parents' divorce, a 14-year-old girl is dissatisfied with her new surroundings; she starts running away from home until one time, she never returns; it takes 10 years before dark secrets are revealed.

Roger Kemp finds the body of his murdered 19-year-old daughter, Ali, at the neighborhood pool where she worked; Kemp embarks on a quest to find his daughter's killer using billboards.

Alexis Murphy, who is a rising social media star and high school athlete, disappears along the infamous Route 29 in August of 2013; a massive search by local and federal authorities yields zero results, until a security video reveals a chilling clue.

In August 1992, millionaire Tennessee landowner Allen Roberts arrives home to discover his wife is missing; he tells police he received a ransom call for Doe's safe return; slowly, the town turns on Allen, until police take note of one odd neighbor.

In Post Falls, Idaho, devoted family man Bo Kirk vanishes, and his truck is found set ablaze; Bo's sister blames their estranged father, until released ATM security footage points to one of his co-workers who has piercing blue eyes.

In Aurora, Ind., the townspeople are horrified when beloved mother and hairstylist Leigh Jennings is killed in her own home.

A woman working for a plant in Camden, Ark., goes missing; when a local stumbles upon Ruiz Stone's abandoned van, her family fears the worst, and some speculate Ruiz fled town with a lover, but detectives reveal something far more sinister.

Middle American townspeople hold the clues to help solve the murders that have forever changed their lives and how they understand their home.

Bitter accusations unleash after single mom Kelli Underwood moves in with her best friend from high school; Kelli's daughter finds her dead, and investigators begin to uncover secrets and betrayals among the women of a small Texas town.

The Bobbies function like a high school sorority; they're a philanthropic organization also known for wild initiation rituals and social exclusivity; when someone murders one of their own, every Bobbie becomes a suspect.

A cold-blooded murder takes place in Speedway, Indiana, a midwestern town known for car racing. The crime stuns the residents and sets detectives off on a long and winding trail of a killer.

In 2001, actor Robert Blake finds his new wife, Bonny Lee Bakely, shot in the head in the couple's car; the largest homicide investigation in LAPD history uncovers a story of blind ambition and betrayal.

The Bobbies function like a high school sorority; they're a philanthropic organization also known for wild initiation rituals and social exclusivity; when someone murders one of their own, every Bobbie becomes a suspect.

A cold-blooded murder takes place in Speedway, Indiana, a midwestern town known for car racing. The crime stuns the residents and sets detectives off on a long and winding trail of a killer.

In 2001, actor Robert Blake finds his new wife, Bonny Lee Bakely, shot in the head in the couple's car; the largest homicide investigation in LAPD history uncovers a story of blind ambition and betrayal.

Bitter accusations unleash after single mom Kelli Underwood moves in with her best friend from high school; Kelli's daughter finds her dead, and investigators begin to uncover secrets and betrayals among the women of a small Texas town.

Caught up in a love triangle, young chef Heather Mallory vanishes; detectives and Heather's parents search for the truth in an investigation involving wiretaps, confidential informants and a dramatic resolution deep in the forest.

When Ashley Benson is found murdered in a trendy Portland, Ore., hotel, detectives quickly dial in on three suspects, all of whom have been romantically linked to Benson whose parents must come to grips with their daughter's secret life.

A birthday ends in tragedy when a beloved family is found brutally murdered; detectives are left in the dark until a chance encounter changes everything.

After jewelers Patty and Richard Zimmerman are found executed in their Society Hill town home in Philadelphia, police suspect a robbery gone wrong, then they discover that nothing has been taken.

When Helen Bernstein is found dead in the bathtub of her Chestnut Hill high-rise, she appears to have died of natural causes; when an autopsy reveals she was strangled, detectives ask who would want Helen dead and why.

A college student disappears while out running, and her body is found at the edge of a river; her family and her town are haunted for years thinking her killer is living among them; finally, DNA and help from an unlikely source identify her killer.

A college student disappears while out running, and her body is found at the edge of a river; her family and her town are haunted for years thinking her killer is living among them; finally, DNA and help from an unlikely source identify her killer.

Vanessa Guillen joined the Army in 2018, and while she was stationed at Fort Hood, she told a family member that she was being harassed by a superior, but she never revealed his name.

Vanessa Guillen joins the Army in 2018, and while she was stationed at Fort Hood, she tells a family member that she is being harassed by a superior, but she never reveals his name.

An off-duty police officer pulls a gun on another motorist; a machete-wielding man attacks a delivery driver; an angry commuter in an SUV stalks a cyclist; a man takes out his aggression on a defenseless driver.

An angry driver chases after another car; a disgruntled neighbor takes things too far; a brazen gunman threatens another driver; a biker hangs on for dear life.

A motorcycle group ride becomes dangerous; a light collision leads to a confrontation with a knife-wielding man; semi-truck drivers come face-to-face with road-raging motorists; a man is pursued and challenged by an overly aggressive driver.

A rage-fueled driver crashes into a building; Florida drivers face chaos on the roads; New Jersey drivers try to survive their commute; an angry man picks a fight with a scooter.

Good Samaritans assist road rage victims; a group of women gets into a big brawl in a Florida intersection; a motorcycle causes an accident; a man plows through a parade route.

A man points a gun at a young woman after she allegedly cuts him off; a fender-bender leads to a knockout; kids are at risk when their parents take things too far on the road; some international tourists witness a roadside brawl.

Disc jockey Ervin Holton is found shot dead on his friend's porch; with no witnesses, investigators spot cameras outside a nearby store pointing directly at the crime scene.

A quiet town is shaken to its core when an innocent woman is gunned down in broad daylight; detectives desperately act to find her killer and restore the peace.

Hawaiian getaway turns into a nightmare when 28-year-old Ivanice Harris vanishes into thin air; Detectives trace Ivanice's movements to a Waikiki hotel, covered in surveillance cameras.

When a killer executes 19-year-old Abigail Gasca-Chavez in her own home, the only witnesses are her toddler and neighborhood surveillance cameras; detectives close in on a suspect, but when he heads for the Mexican border, it's a race against time.

When 30-year-old, mother-of-two, Mandi Gordon disappears, investigators turn to CCTV for clues to help them find her; they uncover a complex web of lies and a betrayal that lead to a botched cover-up, and a grisly discovery on a remote ranch.

Real crimes and cases are solved using footage from surrounding surveillance cameras; while footage usually consists of honest citizens going about their routines, it can also be used to catch the right culprit.

A Miami couple sets sail with friends for a Bahamian getaway aboard a luxury charter boat. When the vessel is found drifting near Cuba with no sign of the crew, the Coast Guard uncovers bloodstains, shell casings, and a missing life raft.

Eleven-year-old Carlie Brucia disappears while walking home from a friend's house; police discover security camera footage of her shocking abduction, and the inquiry becomes a manhunt.

Real crimes and cases are solved using footage from surrounding surveillance cameras; while footage usually consists of honest citizens going about their routines, it can also be used to catch the right culprit.

A Miami couple sets sail with friends for a Bahamian getaway aboard a luxury charter boat. When the vessel is found drifting near Cuba with no sign of the crew, the Coast Guard uncovers bloodstains, shell casings, and a missing life raft.

Eleven-year-old Carlie Brucia disappears while walking home from a friend's house; police discover security camera footage of her shocking abduction, and the inquiry becomes a manhunt.

When 30-year-old, mother-of-two, Mandi Gordon disappears, investigators turn to CCTV for clues to help them find her; they uncover a complex web of lies and a betrayal that lead to a botched cover-up, and a grisly discovery on a remote ranch.

After a baby is found abandoned along Ohio's Scioto River, police discover the child's mother has been murdered, and then they uncover secrets about someone in the young mother's past while investigating the case.

The body of 18-year-old Tina Hendricks is found floating in a Florida canal.

A brutal murder is committed in front of the Hattenbrun home, and police must focus on several family members to catch the sadistic killer; before long, they discover a shocking truth that no one thought possible.

After dating a short time, Tyrone Coles asks Denise Gay to move in with him even though their family members oppose this arrangement; a series of tense confrontations leads to a vicious murder and twisted cover-up.

Susan Greene, 59, and Dennis Goins, 62, get a new lease on love; after they tie the knot, a gruesome weekend-long crime spree tears their family apart.

Jenelle Potter develops an attraction that isn't reciprocated, making her feel ostracized and threatened; then, a shadowy figure emerges to entangle her family members in a dark plot with a twisted ending no one saw coming.

Jennifer Snyder is a shy vet tech who falls for her boss, a driven young doctor; overshadowing their steamy affair is a controlling wife and a surprise pregnancy announcement that sets in motion a cold-blooded murder plot.

Barbie Dailey goes looking for love online and meets Josh, who appears to be the answer to her prayers; when Barbie's friends uncover a dark secret, their fairytale romance is consumed by obsession, jealousy and a killer rage.

Coworkers become concerned when a trusted legal assistant fails to show up for work; as the sordid details of the employee's abduction come to light, it appears someone at the office may know more than they let on.

Jeanne Smith and her two daughters, Marie and Anna, make for a tight-knit family trio; when Jeanne and Anna go looking for love in all the wrong places, it ends in heartbreak, lies and murder.

Despite her family's protests, 19-year-old Micah Rine marries Thomas Pate and moves away with him; when Thomas reports Micah missing after she fails to return home from a run, investigators take a close look at their life together in Tennessee.

After becoming involved with controversial lawyer Catherine Mehaffey, Gary Taylor realizes he's made a grave mistake and won't be able to break things off without calamitous repercussions.

Lori and Brook have one terrible commonality, Gary Simmons; Gary tortures Lori during their 6-year marriage; later, he imprisons and violates Brook; the two women meet for the first time and share their stories.

When Eric Nance asks his sister, Belinda, to find and destroy a murder weapon, he expects her to protect him; when Belinda finds it, she is torn between family loyalty and doing what she knows to be right.

Eugene Borg knows that Satan has evil plans for his young son Tyler and spends the subsequent years battling the demons he believes plague his child; a shock comes that proves he may have forever lost the war for his son's soul.

Ron Youngblood always dreamt of having a family; when he meets Veronica, he thinks his dreams are coming true; instead, it's a nightmare; she's cold, cruel and unfaithful; when Ron tries to leave, she destroys everything he cherishes.

The investigation into the death of Sarah Harris raises questions about the relationship between a doctor and his much younger girlfriend.

Josh Clark takes what he wants; his family loves and supports him, but he's intent on destroying them; no one sacrifices more for him than his grandmother, yet she's the one who suffers his wrath; now, his mom and brother want him to tell them why.

A neighborhood garage sale ends in a hail of gunfire; police chase a cold-blooded killer who was caught in the act by surveillance cameras.

The investigation into the death of Sarah Harris raises questions about the relationship between a doctor and his much younger girlfriend.

Josh Clark takes what he wants; his family loves and supports him, but he's intent on destroying them; no one sacrifices more for him than his grandmother, yet she's the one who suffers his wrath; now, his mom and brother want him to tell them why.

A neighborhood garage sale ends in a hail of gunfire; police chase a cold-blooded killer who was caught in the act by surveillance cameras.

Ron Youngblood always dreamt of having a family; when he meets Veronica, he thinks his dreams are coming true; instead, it's a nightmare; she's cold, cruel and unfaithful; when Ron tries to leave, she destroys everything he cherishes.

A New Year chill is in the air when a woman and her daughter are savagely murdered in their Woburn, Mass., home; detectives take a shot in the dark while solving this mystery.

After an up-and-coming actress is savagely murdered in her home, police believe an angry, revenge-hungry killer is responsible.

Single mother Erin installs a security system after realizing that someone's been inside her home, but that doesn't stop the intruder from breaking in, determined to end her life as well as his own.

Masked intruders break into Valerie and Matthew Yussman's home demanding $1 million and threatening to detonate a bomb to get it.

Southern belle CeCe Coffee falls prey to a brutal home invasion that will force her to think on her feet if she wants to stay alive.

When Veronica Bozza's body is found on her living room floor, it sends shock waves through the close-knit community of Bridgewater, Tenn., and leads investigators to uncover a bizarre murder plot right out of a Hollywood movie.

In Roswell, Ga., millionaire Lance Herndon is living the American dream, then he is found brutally murdered, and investigators must untangle a twisted web behind the gates of the town's upscale communities.

When Staff Sgt. Michael Severance goes AWOL, the community of San Angelo, Texas, rallies around his bride, then investigators discover a sinister side to his disappearance, uncovering a saga of treachery and passion as big as the state of Texas.

Recovering from an abusive relationship, a girl looks for love on a popular dating site.

When two teenage girls fall in love, their hedonistic lifestyle is played out on social media for all to see; behind the facade, petty jealousies and insecurities escalate until finally the pressure erupts in a frenzy of shocking violence.

After moving to the idyllic town of Gulfport, Fla., Candy Williams meets a handsome stranger at the beach, but her storybook romance turns into a real-life nightmare as his past comes to light.

Twenty-four-year-old Jessika Rovell falls for Jeffrey Marsalis' charm and good looks but when she discovers his secret online life as Dr. Jeff, she realizes she's been dating a monster who stalks dating sites.

A gunman pins down Arkansas officers for four hours; after a high-speed chase of a pick-up, Oklahoma City officers fear an ambush when a suspect bails; a naked driver waving a gun leads Wisconsin police to a standoff.

A man calls 911 to report he's on the telephone with his girlfriend who's in trouble; when police respond, the door is answered by the woman's two frightened sons, and she has been severely beaten.

An armed robber starts a shootout on a city bus in Maryland; a California police officer races to drag a man from a wheelchair stuck on a train level crossing; in Ohio, officers attempt to rescue a woman trapped inside a raging house fire.

Two distraught women call 911 when they discover their sister brutally murdered; soon, detectives uncover a stunning surprise and struggle to find a killer whose self-hatred drove him to commit the ultimate crime in a precedent-setting case.

An undercover agent buying drugs and guns from Florida gangs finds himself at the wrong end of the barrel; a young mom and her kids are about to be swept away by a sudden torrent; a truck plows recklessly through rural Ohio.

A woman returns home to find her husband unconscious and bleeding on the floor of their horse barn; a 911 operator coaches her through CPR, but it's too late, and police later use the call itself to find clues to a plot to kill a beloved father.

In Wisconsin, Rhinelander PD attempts to foil a murder for hire by going under cover and meeting the suspect as a hit man; in Colorado, law enforcement from two counties try to stop a runaway semi-truck before it damages the little town of Brush.

A frantic woman calls 911 saying an intruder just entered her home and shot her husband; when a local fire chief dies from his injuries, first responders work tirelessly to find out who killed one of their own.

A group of men discovers a woman's body in a park in Red Valley, Ariz.

Real crimes and cases are solved using footage from surrounding surveillance cameras; while footage usually consists of honest citizens going about their routines, it can also be used to catch the right culprit.

Detectives are determined to find Anthony Edwards' killer when the 46-year-old man is found shot in a park.

Don Fluitt is found dead in his garage four days after Christmas; now, body-cam video and original audio capture the detectives' desperate hunt for Fluitt's killer while family members and friends point fingers at each other.

Real crimes and cases are solved using footage from surrounding surveillance cameras; while footage usually consists of honest citizens going about their routines, it can also be used to catch the right culprit.

Detectives are determined to find Anthony Edwards' killer when the 46-year-old man is found shot in a park.

Don Fluitt is found dead in his garage four days after Christmas; now, body-cam video and original audio capture the detectives' desperate hunt for Fluitt's killer while family members and friends point fingers at each other.

A group of men discovers a woman's body in a park in Red Valley, Ariz.

After a gunfight at a biker bar claims the lives of two men, Lt. Joe Kenda must delve deep into the world of an infamous biker gang to determine whether the cause behind the violent encounter was gang rivalry or something more personal.

Lt. Joe Kenda and his Fugitive Unit search for two escaped inmates in Colorado Springs, Colo.; police break up a domestic dispute and find a body in the bedroom.

Violence erupts after uninvited guests crash a barrio birthday party, leaving Enrique Urrutia dead; to prevent a gang war from breaking out, Lt. Joe Kenda must crack an unwritten code of silence and bring Enrique's killer to justice.

A gathering of friends turns deadly after two gunmen shoot William Davis in the head; while the witnesses are unable to provide any solid leads, Lt. Joe Kenda digs into Davis' past and starts to suspect someone in William's circle is lying.

A bystander receives a deadly head injury during a roadside altercation, then his body disappears from the scene; after a toddler is kidnapped for ransom, Lt. Joe Kenda joins forces with an undercover team in a race against time.

Soon after the lifeless body of Charlie Tuttle is discovered behind a locked bedroom door, his death is ruled a suicide; six months later, Lt. Joe Kenda receives an unprompted confession that propels the case in a whole new direction.

The unsolved rape, mutilation and murder of young G.I. Darlene Krashoc has haunted Joe Kenda in the years since he turned in his gun and badge; a crack team of cold case cops uses Kenda's groundwork to set a trap for a monster hiding in plain sight.

Joe Kenda's investigation into the brutal rape and murder of a young wife and mother goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

A man found stabbed and burned launches Lt. Joe Kenda on a manhunt; when the trail goes cold, Kenda connects the dots among a string of otherwise-unrelated heartless murders, leading him into his first and only search for a serial killer.

After multiple homicides occur along Virginia's Colonial Parkway, authorities task Det. Danny Plott with finding a serial killer; investigators uncover a pattern at the crime scenes about the killer's method, becoming the key to solving the case.

Deep in the kudzu of Alabama, police get a call about the body of a young man burned beyond recognition; Detective Kevin Palmer turns to the victim's phone records and picks up on a plot to lure the victim.

Lt. Joe Kenda showcases homicide detectives from across the United States who worked tirelessly to put killers behind bars and bring justice to victims.

Two employees of Dayton, a bar in Ohio, are beaten to death; on the case, Det. Doyle Burke investigates a series of bizarre clues, including a citywide KKK rally and a mysterious confession letter from The Devil postmarked from Hell.

The murder of a radio host uncovers a tale of love and deceit.

When a young woman turns up dead in south Texas, Captain Federico Calderon fears the killer has disappeared into Mexico; as more bodies turn up, investigators pick up on the trail of a serial killer, leading to a showdown in the streets of Laredo.

The murder of a radio host uncovers a tale of love and deceit.

When a young woman turns up dead in south Texas, Captain Federico Calderon fears the killer has disappeared into Mexico; as more bodies turn up, investigators pick up on the trail of a serial killer, leading to a showdown in the streets of Laredo.

Two employees of Dayton, a bar in Ohio, are beaten to death; on the case, Det. Doyle Burke investigates a series of bizarre clues, including a citywide KKK rally and a mysterious confession letter from The Devil postmarked from Hell.

A single mother gets along with her handyman neighbor, until she gets a new man in her life and her neighbor adopts more than 50 dogs; accusations become threats, threats become attacks and, eventually, the conflict reaches a bloody conclusion.

A Baptist pastor moves in next-door to a free-spirited older woman in suburban Las Vegas, leading to years of back and forth accusations of dog theft, intimidation and drug use; once the agitation reaches biblical proportions, retribution is wrought.

In 1981, Florida police tell two boys that someone murdered their mother, but they don't know the culprit; the case goes cold for nearly 40 years until advanced DNA technology points to a person everyone trusted.

Millionaire mother Pam Hargan and her adult daughter, Helen, are found murdered in their northern Virginia home; the police tell the family her wound looks self-inflicted.

In 1997, four families from Texas and Oklahoma are crushed when their daughters go missing, and the cases go cold; decades later, the serial killer himself helps investigators solve those murders.

Millionaire business owner Andreen McDonald sets off a shocking police investigation in San Antonio, Texas, after she fails to show up for work or for her usual gym workout.

When the medical board strikes off popular Arkansas pain doctor Randeep Mann amid allegations about his practice, they also uncover a monster; he stops at nothing to regain his practice, unleashing an explosive plot to regain power.

Pastor Schirmer wields power over his congregants; when one takes their own life, investigators question the accidents that killed this minister's two wives, revealing a wolf in sheep's clothing.

Sidney Dorsey is the first African American sheriff in DeKalb County, Ga.; after he wins on an anti-corruption ticket, revelations of him abusing the power of the office for money, sexual favors and deadly vengeance shock voters.

Katie always knew her grandpa, Buster, as a kind man; he has a dark past but is the center of their big, close family; then comes the murder; he is not the man Katie thought she knew; she finally learns the hard truth about her grandfather.

Growing up, Ashley is a bright kid, but as she grows, she becomes troubled and violent; her father and sister watch as she changes into someone they no longer recognize; when she brutally murders her own grandmother, she tears the family apart.

Josh Clark takes what he wants; his family loves and supports him, but he's intent on destroying them; no one sacrifices more for him than his grandmother, yet she's the one who suffers his wrath; now, his mom and brother want him to tell them why.

Serena Karlan is ecstatic to join her boyfriend, Bison Dele, a retired NBA basketball player, aboard his catamaran, then his estranged brother surfaces.

After a whirlwind romance, newlywed Karen leaves everything behind to start a dream life on the water with husband David; the dream soon turns into a nightmare as David's true colors emerge, and Karen has nowhere to run.

Florence and Mark Unger love nothing more than vacationing at the lake with their two boys; life is perfect until a sports injury pulls Mark into the depths of painkiller addiction; to keep her family afloat, Florence does whatever is necessary.

Newlyweds seeking adventure set sail on a trip around the world; the honeymoon comes crashing to reality for Don when he heads to the one remote island where a serial killer could be in hiding.

Brandon Horst and Heather Schwarz are former high school sweethearts who reunite after Brandon's tour of duty in the Middle East; when they struggle to have a child, the pressure leads to secrets, affairs and deceit, leading to a diabolical homicide.

At first, it appears as though 50-year-old Edwardyne Williams has fallen victim to a random act of violence; however, as police dig deeper, they discover that her killer is someone who has been harboring a grudge against her for years.

Benjamin Amato and Cheryl Kunkle's May-December romance grows complicated when Cheryl becomes pregnant; the former lovers soon square off in court, but the day before their final custody hearing, a murder changes everything.

Teen parents break up and start new families with other people; they battle for custody, leading to obsession, revenge and a double murder; police suspect they have a conspiracy on their hands.

In Texas, a hot new coworker threatens the sanctity of a deeply devout marriage; in Kansas, a young evangelical couple stays unshakeable until the big man on campus enters the picture.

At first, it appears as though 50-year-old Edwardyne Williams has fallen victim to a random act of violence; however, as police dig deeper, they discover that her killer is someone who has been harboring a grudge against her for years.

Benjamin Amato and Cheryl Kunkle's May-December romance grows complicated when Cheryl becomes pregnant; the former lovers soon square off in court, but the day before their final custody hearing, a murder changes everything.

Teen parents break up and start new families with other people; they battle for custody, leading to obsession, revenge and a double murder; police suspect they have a conspiracy on their hands.

In Texas, a hot new coworker threatens the sanctity of a deeply devout marriage; in Kansas, a young evangelical couple stays unshakeable until the big man on campus enters the picture.

Brandon Horst and Heather Schwarz are former high school sweethearts who reunite after Brandon's tour of duty in the Middle East; when they struggle to have a child, the pressure leads to secrets, affairs and deceit, leading to a diabolical homicide.

Love is a powerful emotion but so is hate.

Home is where the heart is and a killer lurks.

The murder of a respected health care aide sends a chill through her community; when the investigation reveals several shockingly similar crimes, police realize they've uncovered the trail of a monster.

After the murder of a young girl walking to school, police race to catch her killer before he can destroy another loving family.

A look at a witness account that could lead a small-town police department in the wrong direction as it tries to solve the murder of a friend.

When Stacy Malman and Robert Feldman fall in love, it's a dream come true; behind closed doors, life becomes a living hell; one night, a knock at the door forces the couple to confront the truth and triggers a series of events ending in horror.

When Angie meets Joe, her family and friends aren't sure what to make of their relationship; the couple marry and have kids but soon Angie becomes isolated from her loved ones and trapped in a spiral of abuse that ends in an horrific triple homicide.

After years of abuse, Cheryl musters the courage to leave her husband, Thom; he stalks her and torments their two children; when Cheryl finds a new love, her ex sets a trap to take the ultimate revenge.

Maria's world shatters when her husband Joel, starts an affair; she fights to save their marriage, but Joel refuses to give up his mistress, and Maria's patience runs out; when she threatens divorce, Joel makes a deadly plan to stop her.

The Tourniquet Killer terrorizes young girls across Houston, Texas, and when advances in DNA finally lead to his arrest, this psychopath eagerly confesses to multiple murders; weeks before his execution, he grants one interview in the spotlight.

When Omaha, Neb., police officers arrest the driver of a stolen van, he shocks detectives by giving an unsolicited confession to a gruesome murder, and it is only the first of many chilling revelations.

A missing persons report leads police to a career criminal and his girlfriend; they uncover a twisted world of illicit schemes, macabre fantasies, and a puppet master manipulating young women down a dark path of sex, drugs and exploitation.

A man finds his girlfriend and her mother murdered in their beds at night; he calls 911 for help, but police discover his urge to seek revenge.

When a priest from Florida goes missing, police focus on a troubled ex-convict whom he helped support; through multiple interrogations, a psychopathic killer reveals details of a twisted vengeance that escalates to a chilling murder.

Dianne Hart and Donnie Rudd begin an affair in a small Chicago suburb, and Dianne's kids hope their mom has found love; however, it triggers a series of bizarre lies and deceptions that reveal a cold-hearted killer in their midst.

Stephanie is a gifted stage performer and much-loved teacher; behind closed doors, resentment and envy fester in her marriage, leading to a shocking 911 call.

Divorced dad-of-three, Daniel Halseth, lives for visitations with his kids; when his teenage daughter Sierra claims that she wants to live with her dad, Daniel finds himself drawn into a web of lies and a plot that ends with a deadly house fire.

Laurie Bursey spent her life searching for happiness; after two marriages and three children, she thinks she finally found it in southern trucker Kurt Bird; but, a violent abuser lurks behind Kurt's bad-boy swagger, and happiness soon becomes fear.

When Michael O'Leary moves in with his brother Marc, he doesn't realize that Marc has already fled the police in one state and committed crimes in another; the police track them down and suspect Michael of being Marc's accomplice.

Going inside prison walls to interview evil itself as relatives of killers, along with killers themselves, tell their chilling tales; questions these killers have never been asked before result in powerful, unsettling and contentious encounters.

The disappearance of 23-year-old Montana mom Jermain Charlo.

A concerned mother reports her 24-year-old son missing, as he fell under the spell of a 47-year-old widowed woman; detectives soon realize she's a sexual psychopath who has claimed the lives of more than one admirer.

Going inside prison walls to interview evil itself as relatives of killers, along with killers themselves, tell their chilling tales; questions these killers have never been asked before result in powerful, unsettling and contentious encounters.

The disappearance of 23-year-old Montana mom Jermain Charlo.

A concerned mother reports her 24-year-old son missing, as he fell under the spell of a 47-year-old widowed woman; detectives soon realize she's a sexual psychopath who has claimed the lives of more than one admirer.

When Michael O'Leary moves in with his brother Marc, he doesn't realize that Marc has already fled the police in one state and committed crimes in another; the police track them down and suspect Michael of being Marc's accomplice.

The Georges' lives turn upside down when greed rears its ugly head and someone in the family becomes marked; as investigators uncover the truth, some of the family members find themselves on the road to destruction.

For a Michigan family, winning isn't everything, it is the only thing; when a competition heats up, the family members wind up doing the unthinkable, and their Midwestern community comes face to face with multiple rounds of pure evil.

Julie Bowling is a respected cancer therapist and funeral home worker; when she is murdered the focus turns to her husband's secret life and shaky finances.

Motorcycle-riding Diane Snellen is a single mother trying to make her way in the world while navigating the dating scene in Georgetown, Ky., then her life comes to an abrupt end when she's stabbed in her own home.

A 19-year-old aspiring architect, Claudette Ficik charms every young man she meets, from co-workers at the pet store to her classmates, but when her body turns up in an Atlanta-area river, a shocking secret is revealed - she was pregnant.

Thirty-four-year-old Paige Birgfeld juggles four jobs, three children and two ex-husbands, but no one realizes she is also hiding a deep, dark secret that will eventually lead to a betrayal.

Anime-obsessed teenager Bianca becomes an inspiring mental health advocate online and changes lives; but on forums and social media accounts, she discovers a horrifying and violent underbelly: young men primed to threaten, harm and attack.

A vibrant and inspiring group from Denver's creative community spreads messages of love and inclusion, attracting many online followers; soon they become the target of a hateful and violent member of the online manosphere with shocking consequences.

Stephanie is a feisty, loveable young woman from New Jersey, who is building a brand as a bespoke makeup and SFX artist online; but offline, her life becomes complicated and spirals into mystery when she vanishes into thin air on Halloween Eve.

Master conman Nicholas Rossi fakes his death to evade justice, adopts new identities and leaves a trail of alleged crimes across continents.

Preacher Sheryl Ruthven, a self-proclaimed prophet, beguiles her followers into subservience and uses them to settle personal scores; as her beliefs grow increasingly bizarre, she demands her congregation adopt cats.

Jon and Carie Hallford's return to nature promises care but instead leaves bodies decomposing in filth and provides families with concrete instead of ashes; when investigators arrive, the Hallfords flee, leaving families demanding justice.

Elizabeth investigates the troubling case of Kate Ranta, a military wife who found herself in an abusive relationship and battling all the systems that protect abusers.

Elizabeth digs into convicted conman, Anthony Strangis; after unpacking his MO with Sarma, Elizabeth uncovers a string of alleged new victims; new revelations suggest Anthony Strangis is at it again and put Elizabeth hot on his trail.

Elizabeth continues her quest for answers about convicted conman, Anthony Strangis; after speaking with his alleged victims, Elizabeth wants answers; after the trail goes cold, unexpected intelligence leads Elizabeth right to Anthony's front door.

In the agrarian world of Marathon County, Wisc., the only girl more popular than a homecoming queen might be a 'dairy princess'; when one is found murdered, investigators dive deep into a pool of suspects, from strangers to frenemies.

At the cookie factory, friendships rise fast but so do rivalries; what starts as harmless gossip between co-workers soon turns sour; when jealousy and ambition boil over, the sweet life at the plant ends in cold-blooded murder.

After the stabbing of a married woman in Penfield, New York, police unravel a tale of double lives and jealousy.

In 1975, someone abducts three young girls, stabbing them and leaving them for dead in a field; the Indiana Slasher evades capture, leaving his victims haunted for decades until new technology uncovers his true identity.

At the cookie factory, friendships rise fast but so do rivalries; what starts as harmless gossip between co-workers soon turns sour; when jealousy and ambition boil over, the sweet life at the plant ends in cold-blooded murder.

After the stabbing of a married woman in Penfield, New York, police unravel a tale of double lives and jealousy.

In 1975, someone abducts three young girls, stabbing them and leaving them for dead in a field; the Indiana Slasher evades capture, leaving his victims haunted for decades until new technology uncovers his true identity.

In the agrarian world of Marathon County, Wisc., the only girl more popular than a homecoming queen might be a 'dairy princess'; when one is found murdered, investigators dive deep into a pool of suspects, from strangers to frenemies.

In 2010, after a night of hard partying, former Playboy model Paula Sladewski disappears - hours later, her body is found burned beyond recognition in a Miami dumpster; the investigation exposes a volatile relationship and a haunting lack of justice.

After taking the pageant world by storm, a Playboy cover model gets up close and personal with fans on the phone; as she competes for playmate of the year, an obsessive fan goes a step too far and her entire world comes crashing down.

Native Swede Marioara Shand is setting out on her own in Taos, New Mexico, after a recent breakup, but in July of 2002, police discover her bloody body inside her new home.

When Marlys Sather doesn't return to work after a lunch appointment, her family makes a horrifying discovery; someone set fire to this loving mother of three.

When Paula Cardwell returns from running errands, she finds her 20-year-old daughter, Anna Catherine, lying dead on the kitchen floor; the small town of Wetumpka, Ala., is left stunned and determined to find the devil in its midst.

Debra Proctor, a nurse and a pillar of her Cherokee community, meets a caring stranger online and falls in love; they have a happy marriage until the disturbing truth about him causes her world to come crashing down.

Special Ed schoolteacher and devout Catholic Tracey Wygant is sticking out her abusive marriage to Chris Chanowitz through thick and thin until his surprise gift almost ends her life.

Single mom, Wilda Gadd, finds a family-oriented single dad who seems like the perfect life partner, until he devolves into a dangerous monster; she's the only one who can bring him to justice.

Single mother Brooklin meets a gorgeous guy online; despite many red flags, she marries him and is soon alienated from family and close to financial ruin.

A series of non-fiction investigations that explore such themes as jealousy, murder and deceit.

A nurse anesthetist performs CPR on his 31-year-old estranged wife, but she does not survive. He thinks she took pills. However, the autopsy points to a more sinister cause of death.

Criminology Ph.D. student Bryan Kohberger is charged with the murder of four University of Idaho students.

A domestic dispute turns into a hostage situation with children's lives at stake; a vehicular accident turns into a multiple murder with armed killers on the run; a disturbance at a liquor store leaves an officer fighting for his life.

In Ohio, a man shoots his ex; in Utah, police go to a house where a woman and children escape from a suspect armed with a machete; in California, a former patient attacks his therapist.

In Wisconsin, police respond to a burglary in progress, but the suspects flee; a woman in Texas makes a call to 911 from inside a burning building; the streets turn dangerous when the driver of a stolen vehicle tries to get away.

In Florida, after a high-speed chase, a sheriff's K9 is on the loose on its first pursuit; deputies in an Arkansas jail face a battle when inmates turn violent; in Georgia, officers head into the woods to hunt down a felon.

In May 2019 in Cedar Rapids, Iowa, a shooter opens fire on four teenagers in a parked car then escapes with the help of a getaway driver.

Real crimes and cases are solved using footage from surrounding surveillance cameras; while footage usually consists of honest citizens going about their routines, it can also be used to catch the right culprit.

An 18-year-old sets out on a cross-country journey, drawn to a counterculture festival that promises freedom and belonging. Along the way, she finds community, music, and fleeting joy-until her path takes a dark and unexpected turn.

In 2018, 59-year-old Pamela Hutchinson is found dead in her Florida condo; the search for answers leads police to a mysterious woman spotted on CCTV; when the suspect is linked to yet another murder, it sparks a nationwide manhunt and media frenzy.

Real crimes and cases are solved using footage from surrounding surveillance cameras; while footage usually consists of honest citizens going about their routines, it can also be used to catch the right culprit.

An 18-year-old sets out on a cross-country journey, drawn to a counterculture festival that promises freedom and belonging. Along the way, she finds community, music, and fleeting joy-until her path takes a dark and unexpected turn.

In 2018, 59-year-old Pamela Hutchinson is found dead in her Florida condo; the search for answers leads police to a mysterious woman spotted on CCTV; when the suspect is linked to yet another murder, it sparks a nationwide manhunt and media frenzy.

In May 2019 in Cedar Rapids, Iowa, a shooter opens fire on four teenagers in a parked car then escapes with the help of a getaway driver.

After Jaime Lyn Larson is found murdered in her Portland, Ore., apartment on Christmas day, investigators learn the terrifying truth about her killer.

In Santa Monica, Calif., a man who killed an art teacher remains at large for years as police use every trick in the book to hunt him down.

Dawnia Dacosta attends nursing school, works the late shift and goes to church for evening services; one night she runs out of fuel and walks to the nearest station; then a man in a van offers a ride back to her car.

After Kacie Woody discovers Internet chat rooms, the popular teen has her pick of high school hunks hoping to connect; the teen is exchanging IMs with her latest love interest, when a silver van creaks to a stop outside her house.

When Ray and Marie Thornton go out for a drive in the country on Easter Sunday, they are almost chased off the road by a tailgating van and when they see the driver changing license plates and dumping a bloody sheet, they call police.

In Sheffield, Ala., 36-year-old Kimra Riley heads to a bar looking for fun but finds something far more sinister; later,. her body is found on the banks of the Tennessee River.

Twenty-two-year-old mother Shawn Williams heads to the store late one night and never comes home, then her body is found the following day along an Oklahoma river; investigators wonder if one of the men in Williams' life might be her killer.

The body of 20-year-old transgender woman CeCe Dove is found floating in a pond 20 miles from her Cleveland home, and detectives consider motives personal and primal as they hunt down her ruthless killer.

After 53-year-old Barbara Hefner disappears from her Georgia residence, her body is found floating in nearby Folly Lake; during the investigation, police officers uncover a a recent inheritance and a secret affair.

A house on Elm Street goes up in flames; inside, firefighters discover two bodies impaled with swords; police quickly identify the male victim, but the female victim remains a mystery.

A hippie grandpa goes missing on Halloween and turns up in his van, dead, on Elm Street; detectives look into who might have killed this beloved family man, only to find they are on the trail of someone who has most likely killed before.

What started as small-town hijinks leads two teenagers to go missing on Thanksgiving; when investigators get a phone call from a man who claims he is responsible for the deaths while defending his home, they must determine truth from madness.

When an Ohio couple is found dead in their ransacked home, detectives turn to the community for help; investigators piece together the events of a horrific night to uncover the truth of what occurred to these local business owners.

A woman vanishes from her home in the neighborhood of Belle Center, Mo., without a trace; hoping to find Anita Dunn before it's too late, the community aids investigators in an exhaustive search.