Teens break into a sleeping woman's home and mercilessly kill her and maim her daughter with a machete; as they coldly recount the night, police realize they are dealing with sociopaths; two teens devise a devious plot to kill a girl in cold blood.

A little girl and a young woman go missing years apart and one man, Hadden Clark, is connected to both; in prison, Clark confesses gruesome details of a murderous life after he starts to believe his new cellmate is Jesus Christ.

Teens break into a sleeping woman's home and mercilessly kill her and maim her daughter with a machete; as they coldly recount the night, police realize they are dealing with sociopaths; two teens devise a devious plot to kill a girl in cold blood.

In Louisiana, Megan Parra's parents find the kindergarten teacher at home with a gunshot wound to her head; authorities rule her death a suicide, but her family alleges foul play at the hands of her husband.

In North Carolina, a young woman's killer keeps police guessing until he slips up and finally gives them what they need to put him behind bars.

After 23-year-old Ashley Kline is found murdered in a Pennsylvania wildlife preserve, investigators must piece together the last few moments of her life to determine who killed her.

Police officer Christopher Dorner goes on a shooting rampage in retaliation for his termination from the Los Angeles Police Department.

University of Florida freshman Christian Aguilar vanishes from campus, plunging his family and friends into turmoil, then a a closed-circuit television recording takes the case in a new direction.

Twenty-four-year-old father-to-be Nathan Trapuzzano is shot dead while taking his morning walk; security footage from the scene shows the final moments of Trapuzzano's life, but it may not be enough to help police hunt down his killer.

A woman vanishes after a night out; the only clues left behind are suspicious drag marks outside her home; closed-circuit television footage reveals three different suspects on the scene.

In August 2000, 17-year-old Jessica Carpenter is found murdered in her Aiken, S.C., home by her mother; local reporters and family members tell the story of a town frozen in terror as police search for a possible serial killer on the loose.

In March 2014, North Carolina high school freshman Danielle Locklear slips out to see a friend but never returns home; as hours turn to days, her family members as well as the townspeople begin to wonder if a killer could be in their midst.

Alisha Sidie disappears from a small vacation town in Wisconsin in 2008; family, friends, local reporters and police investigators recall the fear and sadness the crime instilled on their tight community.

Michelle Miller investigates the murder of Ally Kostial, and the trail detectives followed to find her killer; prosecutors say this case raises questions about missed warning signs in relationships and whether her murder could have been prevented.

An item found in the medicine cabinets of millions of Americans may have played a role in the death of a well-liked millionaire.

A night out for two friends in Los Angeles ends in tragedy after masked men drop them off at separate hospitals; the young women die from drug overdoses, and police immediately suspect foul play; Jonathan Vigliotti investigates.

A woman dies in a brutal stabbing at home; police quickly locate the prime suspect, her ex-boyfriend Antoine Bynum; in his interrogation, he appears to have a psychotic episode until detectives discover it's merely the ruse of a deranged psychopath.

While being questioned in the abduction of an Anchorage barista, a young local businessman starts negotiating with investigators to reveal details of a depraved secret life as one of America's most meticulous and psychopathic serial killers.

A young woman makes a frantic 911 call about a brutal home invasion, which results in the shooting of her mother and father; as police interview her, they uncover a secret double life and an elaborate web of lies spun by a maniacal psychopath.

A woman's body is found strangled and partially nude off the side of a Connecticut country road; investigators apprehend a suspect in her murder, only to discover he's a prolific serial killer, responsible for the rape and the murder of eight women.

When a beloved elderly couple disappears on a Sunday afternoon, one person knows their battered bodies lie dead at the bottom of a well; that man is the couple's son, who lives off his parents' charity yet takes pleasure in murdering them.

A teenager is arrested after his mother finds the body parts of a missing drifter in his bedroom; while in custody, police uncover that the suspect is a psychopath who idolizes serial killers.

A six-year-old girl vanishes without a trace from her backyard; fifteen years later, a man confesses gruesome details of a murderous life after he starts to believe his new cellmate, a convicted murderer, is Jesus Christ.

A young woman vanishes into thin air after returning home from college; as detectives investigate, they uncover evidence of a brutal crime, revealing a suspect with connections to a previous case.

Jack keeps playing the role of Jesus for Hadden, who spills more of his brutal life story through words, writings and cryptic artwork; Jack brings in the FBI, together they uncover decades of crimes from Hadden and his serial killing family.

In Fla., when a thief goes on the run, he draws officers and their K-9 into a deadly ambush; in Wisc., a traffic stop becomes a manhunt; an officer must ram a suspect head-on to get him off the road and puts her own life on the line.

Jack keeps playing the role of Jesus for Hadden, who spills more of his brutal life story through words, writings and cryptic artwork; Jack brings in the FBI, together they uncover decades of crimes from Hadden and his serial killing family.

In Fla., when a thief goes on the run, he draws officers and their K-9 into a deadly ambush; in Wisc., a traffic stop becomes a manhunt; an officer must ram a suspect head-on to get him off the road and puts her own life on the line.

A young woman vanishes into thin air after returning home from college; as detectives investigate, they uncover evidence of a brutal crime, revealing a suspect with connections to a previous case.

Surveillance cameras in Toledo, Ohio, capture a drive-by shooting that rips a family apart when a 3-year-old boy dies; Jonesville, La., a nightclub shooting of a police officer's son leads to a manhunt across state lines.

In Louisiana, a murder turns up on tape; police use surveillance video and social media to track down the killer; investigators solve a murder using video evidence to solve a puzzle and catch a killer before he flees the country.

An armed suspect fires at police before embarking on a dangerous pursuit; a man locks himself in his garage, but it catches fire, and police don't know if they're on a rescue mission or victims of an ambush.

Officers find themselves pitted against a lone gunman holed up in a suburban home; the nerve of a rookie cop is tested when a routine stop on the highway goes horribly wrong.

Police hunt for two suspects who are responsible for a string of armed robberies; an undercover cop foils a murder-for-hire plot; a known felon tries to force an officer off the road, stopping at nothing to escape arrest.

A dangerous felon steals a truck and rams everything in his path; on a freezing winter night, a lone officer is attacked by a crazed half naked man; at a county jail, a gunman fires at unarmed officers, leaving one fighting for his life.

Chrissy Chambers and her girlfriend, Bria Kam, are huge YouTube personalities in the lesbian world; Chrissy's old flame -- a man -- starts a devastating revenge porn campaign, spreading videos of him having sex with her while she's unconscious.

Andy Castillo uses the internet to call and text female realtors in 20 different states; wielding their social media against them, he makes the women believe he's lurking nearby, adding to their terror.

Online cult leader Sherry Shriner reaches her followers through YouTube videos and keeps them in line via her Facebook page; when a group member dies in a tragic shooting, attention turns to Sherry and the control she wields over her followers.

A woman adopts a 6-year-old child through an online re-homing forum; she's soon inspired to help re-home other children but is horrified to discover that two of them may have fallen into the clutches of a child abuser.

A 28-year-old man becomes incensed after being deceived by an online prankster, and he seeks revenge against the only person he can think of -- the young woman in the pictures.

When 14-year-old Alicia DeBolt goes missing, a helpful neighbor points the finger at an older teenager; then, police discover a string of text messages on DeBolt's cell phone and close in on a suspect whose obsession with the teenager led to murder.

After Ernest Christie dies, his son, Sam, calls police and tells them everything he witnessed as a child, including murder.

When Amy Chesler calls 911 to report what her brother, Jesse Winnick, has confessed to, she doesn't know whether to believe him; Jesse's always been a liar, and Amy doesn't understand what he is capable of until she walks in and sees it for herself.

When Steven Crittenden confesses to his brother, Bryant, and then swears him to secrecy, Bryant faces the toughest decision of his life: whether to keep the secret and risk letting a murderer get away with it or tell the truth and betray his family.

Detectives conduct an intense interrogation; Hadden's admissions take a toll on Jesus; the Clark family history of brutality and childhood abuse comes to light, as well as Hadden's brother Bradfield's office romance, which takes a shocking turn.

Jesus' crime comes to light; investigators work with Jesus to pull more information out of Hadden, leading them to other potential crimes, including the unsolved murder of yet another young girl; Hadden reveals his surprising partner in crime.

Detectives take Hadden and Jesus on road trips to hunt for bodies and clues, hoping to keep Hadden in jail for good; news of Jesus' fate surfaces; Hadden taunts investigators with the breadth of his cold cases.

A young Ohio man vanishes without a trace, detectives embark on an investigation involving a love triangle, drugs and murder.

Detectives look for surveillance footage when a woman is discovered in a bath of her own blood.

Detectives take Hadden and Jesus on road trips to hunt for bodies and clues, hoping to keep Hadden in jail for good; news of Jesus' fate surfaces; Hadden taunts investigators with the breadth of his cold cases.

A young Ohio man vanishes without a trace, detectives embark on an investigation involving a love triangle, drugs and murder.

Detectives look for surveillance footage when a woman is discovered in a bath of her own blood.

Jesus' crime comes to light; investigators work with Jesus to pull more information out of Hadden, leading them to other potential crimes, including the unsolved murder of yet another young girl; Hadden reveals his surprising partner in crime.

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.

In May 2017, high school teacher Theresa Lockhart is a no-show at her confirmation sponsor's big event; later, her car is discovered with nothing inside, prompting police to turn the community upside down.

When these women expose their true selves, their partners discover they've been sleeping with the enemy; a beauty queen tries to free herself from familial duties; an accountant's tryst turns deadly; a valedictorian makes sure her man cannot leave.

Love is a powerful emotion but so is hate.

Women who satisfy their blood lust within the family.

Crime experts explore the motives and modus operandi of female killers; while males are often driven by anger, impulse and destruction, women usually have more complex, long-term reasons to kill.

In Connecticut, a highway clean-up crew discovers a suitcase containing the crumpled remains of 24-year-old Valerie Reyes; as the list of potential suspects grows, solving the case may hinge on a portrait of the killer sketched by the victim.

When Florida investigators find a retired Marine beaten then slain by a shotgun blast in his home, their suspect list grows from his estranged son to a mystery woman he'd just met to a possible serial killer.

As detectives reconstruct a single mom's final 24 hours, their suspicions turn to her fiancé, a co-worker and a violent ex-boyfriend; investigators discover a disturbing pattern of attacks and a predator with the master key.

An illegal insurance scam leads to the destruction of an entire family.

After Gayle Isleib is shot to death on April 30, 1996, police identify her coworker, Tyronne Montgomery, as her killer; they find love poems as well as evidence that Montgomery planned to kidnap Isleib and murder her husband.

Afer Leesa Nascimento is shot dead, a recently fired coworker, Lorenza Sam, is tied to her murder and arrested.

When Mandy meets Paul online, he quickly moves to Kentucky so they can marry; love soon turns to hate when his controlling behavior turns murderous.

Police officer Andy Kimbrel hopes to find happiness with new wife, Stephanie Keller, but when the marriage starts to fail, Andy falls victim to manipulation and violence; a fierce argument leads to tragedy, and police suspect something more.

When Olivia marries Christopher Jones, a correctional officer, he runs his home like a prison; on Feb. 14, a day made for love turns into a day of horror, and a home security system helps detectives realize all is not what it seems.

Jessica Jaramillio escapes her abusive ex-husband, Chad Graves, but a joint custody agreement for her children means he will always be in their lives; his increasingly obsessive behavior reveals he is not who he presents himself to be.

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.

He was a family-man, living in a New Jersey suburb with his wife and three kids but unbeknownst to his neighbors, Richard Kuklinski held a dark secret: he was the Iceman, a cold-blooded killer.

For many years, the Iceman, Richard Kuklinski, had literally gotten away with murder, but investigators were on to him; there was very little evidence, connecting the Iceman to his crimes.

Police find Tom Merriman's body in his driveway under a pile of trash and arrested his stepdaughter, Jade Janks; she claims she found him dead in her car, panicked and hid thebody but didn't kill him.

He was a family-man, living in a New Jersey suburb with his wife and three kids but unbeknownst to his neighbors, Richard Kuklinski held a dark secret: he was the Iceman, a cold-blooded killer.

For many years, the Iceman, Richard Kuklinski, had literally gotten away with murder, but investigators were on to him; there was very little evidence, connecting the Iceman to his crimes.

Police find Tom Merriman's body in his driveway under a pile of trash and arrested his stepdaughter, Jade Janks; she claims she found him dead in her car, panicked and hid thebody but didn't kill him.

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.

In 1984, college student Angela Samota gets noticed by the wrong person leading to the ultimate betrayal.

Church secretary Dorothy.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

Bereaved over the loss of their son, a couple is thrilled when a family with two boys moves in across the street; however, the relationship soon sours, engulfing all of them in a conflict that ends in a deadly shooting.

Two neighboring bachelors start out as friends; harmless banter turns into threats eventually igniting an escalating war; the violence ends with a murder so shocking it is almost beyond belief.

A homeowner has high hopes for the renters who move in next door; then, his hopes are dashed, setting the stage for a shocking act of violence that threatens to claim many lives.

A hospital worker invites a colleague (who's fallen on hard times) to come live with her. But the good deed backfires, and it only takes a few weeks before a stealthy betrayal turns into a gruesome crime.

A woman and her daughter rent out two rooms of their house to old family friends; as the new roommates grow closer, alliances start to shift and tempers flare until it all comes to a bloody end.

Two women strike up a fast friendship and move in together; a lack of privacy and a secret relationship rips apart the harmony; a battle for control ends in a brutal murder.

Getting in the driver's seat for some of the most extraordinary police chases ever captured on camera, with never-before-seen footage; it's a fast-paced, adrenaline-fueled window into a world where criminals do anything to escape.

In Florida, a boat thief runs from the law, kicking off an adrenaline-fueled speedboat chase. A night-time patrol shifts up a gear when a six-ton U-Hual suspected of harboring stolen goods is spotted.

Georgia police officers chase down two suspects with an assault rifle who are intent on shooting their way out of trouble; a terrifying life-or-death pursuit results in multiple casualties before the gunmen lead police into a final fatal gunfight.

After a long battle with cancer, David Weedman is found dead in his home with a gunshot wound; investigators soon turn their focus to David's best friends.

In Germantown, Ohio, Alyce Seff's body is found in a wishing well, and the townspeople are shocked to learn the elderly landlady had as many enemies as she did friends; it will take police nine years to solve her case.

The town of Higginson only has two full-time police officers, and one is gunned down while on duty.

Tiffanie Adams is expecting her first child but disappears from her home in Sullivan, Ind.; as police search for answers, they stumble upon dark secrets surrounding the men in her life.

In 2018, a killer shoots 33-year-old restaurant worker Joshua Webb outside an apartment block in Beckley, W.V.; to solve the murder and identify the culprit, police must unravel a web of lies by following a trail of security footage.

In 2010, three men are murdered in a convenience store in Minneapolis's Somali community; the store's CCTV system uncovers evidence of a robbery gone wrong, and footage from cameras around the city could offer clues to the killer's identity.

In 2017, police find 51-year-old Jorge Rodriguez wandering the streets with gunshot wounds near a crashed car riddled with bullet holes; to get justice for Jorge's heartbroken daughters, they follow a trail of CCTV left by the mysterious suspect.

In a Calgary pub in 2010, 36-year-old barman Dexter Bain is brutally slain during a failed robbery; detectives use surveillance footage from a nearby store to find the suspect and stage a filmed sting operation to prove who pulled the trigger.

In 2010, three men are murdered in a convenience store in Minneapolis's Somali community; the store's CCTV system uncovers evidence of a robbery gone wrong, and footage from cameras around the city could offer clues to the killer's identity.

In 2017, police find 51-year-old Jorge Rodriguez wandering the streets with gunshot wounds near a crashed car riddled with bullet holes; to get justice for Jorge's heartbroken daughters, they follow a trail of CCTV left by the mysterious suspect.

In a Calgary pub in 2010, 36-year-old barman Dexter Bain is brutally slain during a failed robbery; detectives use surveillance footage from a nearby store to find the suspect and stage a filmed sting operation to prove who pulled the trigger.

In 2018, a killer shoots 33-year-old restaurant worker Joshua Webb outside an apartment block in Beckley, W.V.; to solve the murder and identify the culprit, police must unravel a web of lies by following a trail of security footage.

In 1992, Petty Officer 3rd Class Allen Schindler is beaten to death in Japan; 10 days later, his body returns home, with little information from the U.S. Navy; his mother goes on a desperate quest to find out who's behind her son's vicious murder.

With their outlandish outfits and crazy antics, the Club Kids rule the nightlife in New York City; the party ends when one of their own goes missing and a body washes up on the shores of Staten Island.

Lima, Ohio police race to a chaotic scene at an after-hours nightclub following a shooting that leaves one person dead and multiple others injured; as they try to identify the shooter, dozens of patrons flee in fear, confusing first responders.

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

Local police confront their worst fears when the body of a local EMT is found at her home in Columbus, Ga.; the ensuing investigation shocks the wider community and tests the public's faith in law enforcement itself.

In Fernandina Beach, Fla., cosmetologist Joleen Cummings goes missing after an appointment, her last at Tangles Salon; CCTV footage shows her car in an isolated parking lot in the middle of the night; a closer look reveals an unlikely suspect.

When a man disappears in Hagerstown, Md., the only clue to his whereabouts is the white BMW he abandons at an apartment complex; investigators turn to CCTV footage to piece together his final movements and unravel a deadly plot.

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.

When Laura Pietscher, a 28-year-old resident of Sebring, Fla., turns up dead in a dumpster 90 miles away in Tampa, detectives turn to CCTV footage to trace her fatal journey and identify her murderer.

When a computer wizard fails to make the grade as a professional video gamer, he becomes obsessed with achieving internet fame; what starts as an online prank spirals into a new and deadly crime called swatting that chills the nation.

A young woman finds herself increasingly isolated from her friends and family by the man she loves; as his efforts to control her intensify, she comes to realize that he will stop at nothing to keep her by his side.

When a single mother finds her dream man online, she can't believe her luck; however, her quest to meet him soon turns into every mother's worst nightmare; as police scramble to avert tragedy, they discover an elaborate web of lies.

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.

A tragic illness strikes a seemingly happy marriage, and things turn deadly.

Free-spirited Hope follows her heart to Oklahoma to marry Jerry Meek, but it's not long before children come along, and the honeymoon is over; on Feb. 21, 2002, mysterious events shatter the family and remain unresolved for years.

Financial difficulties and philandering bring an emerging fairy-tale romance between a police officer and a former beauty queen to a tragic end.

Christine's life with abusive husband Shane is a cycle of fear, humiliation and violence; after Christine escapes with her children, Shane sets off in pursuit, kicking off a series of terrifying and shocking events leading to a bloody conclusion.

When single mother Rosita accepts a stranger's friend request, she has no idea he's hiding a terrifying secret that will lead to a deadly game of cat and mouse.

The alleged kidnapping of a man and attempted murder of his wife, set Oregon detectives on a quest to peel away the layers of a convoluted case, revealing a chilling reality.

After Katerina leaves her husband and he fights back in imaginative ways to cause her pain, including getting her locked up for a crime she didn't commit, Katerina must do the unthinkable if she wants to escape forever.

When single mother Rosita accepts a stranger's friend request, she has no idea he's hiding a terrifying secret that will lead to a deadly game of cat and mouse.

The alleged kidnapping of a man and attempted murder of his wife, set Oregon detectives on a quest to peel away the layers of a convoluted case, revealing a chilling reality.

After Katerina leaves her husband and he fights back in imaginative ways to cause her pain, including getting her locked up for a crime she didn't commit, Katerina must do the unthinkable if she wants to escape forever.

Christine's life with abusive husband Shane is a cycle of fear, humiliation and violence; after Christine escapes with her children, Shane sets off in pursuit, kicking off a series of terrifying and shocking events leading to a bloody conclusion.

On a freezing Minnesota night, a shooting leaves a young police officer fighting for his life by the roadside; as his wife awaits his fate, a heart-stopping manhunt ensues.

Weeks after the Christmas disappearance of 22-year-old Dean Fawcett, detectives discover a headless body in the snow; a handwritten note points to a dangerous set of suspects, sending investigators on a cross-country manhunt to unravel the truth.

A brutal murder and frozen crime scene shatter the peace in an idyllic Idaho town, then a suspect's bizarre confession leads police to believe the murder case will be solved soon, but all is not what it seems.

A man wakes up to a parent's worst nightmare, discovering his youngest child is dead, his daughter is missing and his son is clinging to life; investigators hunt for the cold-hearted monster who attacked this family.

After a single mother vanishes in Wisconsin, police learn she was recently stalked by two men at a bar.

A six-year-old girl vanishes without a trace from her backyard; fifteen years later, a man confesses gruesome details of a murderous life after he starts to believe his new cellmate, a convicted murderer, is Jesus Christ.

A young woman vanishes into thin air after returning home from college; as detectives investigate, they uncover evidence of a brutal crime, revealing a suspect with connections to a previous case.

Detectives conduct an intense interrogation; Hadden's admissions take a toll on Jesus; the Clark family history of brutality and childhood abuse comes to light, as well as Hadden's brother Bradfield's office romance, which takes a shocking turn.

Jesus' crime comes to light; investigators work with Jesus to pull more information out of Hadden, leading them to other potential crimes, including the unsolved murder of yet another young girl; Hadden reveals his surprising partner in crime.

Detectives take Hadden and Jesus on road trips to hunt for bodies and clues, hoping to keep Hadden in jail for good; news of Jesus' fate surfaces; Hadden taunts investigators with the breadth of his cold cases.

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.

Burlington Police get a call that a man has killed his girlfriend; they arrive at the home to find the man calm while his girlfriend's body lies nearby; he explains that he has other victims, revealing a history of psychopathic sexual deviancy.

Searchers for a missing woman find her brutally beaten body in a dilapidated house near her home; the case goes cold until a local teen steps forward to reveal that he's the killer.

A 17-year-old steals a gun and begins a horrifying road trip; he murders two gas station attendants in cold blood, laughing as he shoots his victims in the face; when officers catch up with him, a haunting portrait of a burgeoning psychopath emerges.

Hikers in Portland discover the badly decomposed body of a raped and strangled young girl; A month later, another woman turns up brutally murdered in same fashion; the prime suspect is a homeless drifter harboring dark sexual fantasies.

Six months pregnant Martine Bernard's family reports her missing; days later, her father vanishes as well; when officers interview Martine's husband, Cassandritz Blanc, they find a calculating psychopath willing to do anything to cover his tracks.

People recount their horrifying true stories about living side-by-side with sociopathic friends or family who go on to commit heinous crimes.

Jennifer Winter accepts Cristobal Palacio's marriage proposal out of necessity; she believes that he understands that it is a marriage of convenience, not love; he makes her his prisoner, and she realizes escape will come at a terrible cost.

When a hole appears in the backyard, Delila Yang gets suspicious; she knows her mother, Karina, dug it and knows someone is missing, but Delila doesn't yet realize she must work with police to trap her mom and unearth her sinister secrets.

When college student, Cayley Mandadi, dies with strange bruises, her family refuses to give up their quest to prove her death was not an accident.

Abby's life takes a dark turn when her aunt and uncle adopt her; what she initially hoped would be a blessing, turns into a nightmare as she realizes she's living with predators; escaping their clutches will take every ounce of her courage.

A successful Florida family has their American dream shattered when a mysterious figure dressed as a clown shoots a loving mother on her doorstep; the case goes cold for decades until an unexpected break helps bring the killer clown to justice.

After a California family man vanishes into thin air, a high-speed police chase uncovers a lead that suggests he was abducted and murdered in a monstrous plot for revenge.

Abby's life takes a dark turn when her aunt and uncle adopt her; what she initially hoped would be a blessing, turns into a nightmare as she realizes she's living with predators; escaping their clutches will take every ounce of her courage.

A successful Florida family has their American dream shattered when a mysterious figure dressed as a clown shoots a loving mother on her doorstep; the case goes cold for decades until an unexpected break helps bring the killer clown to justice.

After a California family man vanishes into thin air, a high-speed police chase uncovers a lead that suggests he was abducted and murdered in a monstrous plot for revenge.

When college student, Cayley Mandadi, dies with strange bruises, her family refuses to give up their quest to prove her death was not an accident.

A young mother disappears and police painstakingly retrace her last known movements; the trail of clues they uncover leads to a shocking and heartbreaking discovery.

The gruesome murder of horse ranch owner Wendi Brant traumatizes her friends and family; police focus on her estranged husband, but there are other potential suspects that muddy the investigation and throw the case into a decadeslong tailspin.

In February 1976 19-year-old Michelle Mitchell vanished from a well-lit parking lot in Reno, Nev.; the young woman's disappearance would quickly be at the center of one of the most complex and disturbing cases in the state's history.

Police must unravel a puzzling mystery when a beloved father and real estate executive is ambushed in his office.

A young woman's disappearance marks the beginning of a heartbreaking murder mystery; a clue discovered by a child could be the key to catching his mother's killer.

Johnny Lewis has everything any 28-year-old actor could ever dream of, but not even a hit show or celebrity girlfriend could keep him from falling headfirst into the most terrifying role of his life.

A sheriff's deputy turned actor reaches new heights of fame as a bailiff on an Emmy-winning show. When a shooting at his house leaves him injured and his wife dead, police learn there's more to this court TV star.

Adea Shabani crossed oceans to pursue her Hollywood dreams; still, passions run high in La La Land, so when she mysteriously goes missing, investigators scramble to keep her from becoming another of the city's lost angels.

Jeanne and Stephen Trantel have the dream life, but when Stephen loses his job after 9/11, their relationship splinters and Jeanne suspects he is hiding a terrible secret, until an unexpected call reveals the shocking truth.

When Sarah Ripoli was just 6 years old, a terrible event tore her family apart; the discovery of secret writings from beyond the grave helps Sarah understand what went on between her mom and dad.

Deborah Jones and Gerard Pepin seem like the perfect match until a dark accusation tears their marriage apart; as the scale of Gerard's wrongdoing comes to light, Deborah decides to fight to bring him to justice, whatever the personal cost.

Rob and Lisa Whedbee are a beautiful couple who turn heads wherever they go; then a medical trauma upends their happy family, setting them on a path of destruction that will end in lies, accusations and a brutal home invasion.

The Futos are a close-knit family of five who film their lives over many decades; four of them are found brutally murdered and the slayings uncover a terrible secret.

Rowena Irani, a Pakistani immigrant, aspires to be a teen psychologist until a pathological love connection shatters everything.

There's nothing Brian and Cheri Hartman won't do for their only child, Scott, including helping to raise his kids after a divorce; Cheri and Brian dote on their grandbabies, and the close-knit family thrives until a betrayal changes everything.

The naked and mutilated body of a mother turns up at the bottom of a ravine in Baton Rouge, La.; when tire tracks lead investigators to a suspect, they encounter an undetected serial killer who confesses to butchering eight women over a decade.

A mother who calls 911 to report her 32-year-old son is threatening her turns up dead in her home; he becomes the only suspect, and when he turns himself in, his pragmatic retelling of the slaying isn't just cold-hearted, it's psychopathic.

When a husband discovers his wife and two children brutally murdered, police begin to suspect the killer is someone they've arrested before; one year prior, a disturbed teenager terrorized a family for months by hiding in a most unlikely place.

A father's desperate search for his daughter leads him to an abandoned cabin in rural Canada; a surprise witness helps expose unspeakable crimes.

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.

When a husband discovers his wife and two children brutally murdered, police begin to suspect the killer is someone they've arrested before; one year prior, a disturbed teenager terrorized a family for months by hiding in a most unlikely place.

A father's desperate search for his daughter leads him to an abandoned cabin in rural Canada; a surprise witness helps expose unspeakable crimes.

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.

The naked and mutilated body of a mother turns up at the bottom of a ravine in Baton Rouge, La.; when tire tracks lead investigators to a suspect, they encounter an undetected serial killer who confesses to butchering eight women over a decade.

A mother who calls 911 to report her 32-year-old son is threatening her turns up dead in her home; he becomes the only suspect, and when he turns himself in, his pragmatic retelling of the slaying isn't just cold-hearted, it's psychopathic.

File clerk Tammy Lohr is seduced by a married police officer; things heat up when his wife receives an anonymous letter revealing the affair followed by a mysterious fire, a brutal stabbing and an elaborate plot to cover it up.

Retired Alaska Commissioner of Public Safety Glenn Godfrey must use his years of law enforcement experience to protect his family from an evil force unleashed by his ill-advised romance.

On New Year's Eve, a domestic dispute ends in tragedy when two deputies are trapped with a gun-wielding suspect; in Iowa, a high-speed pursuit escalates to a gruesome conclusion.

A suspected drug dealer in Georgia won't go down without a fight; police in Ohio fear for their lives when faced with an ambush from a hidden gunman; after a high-speed chase, a fleeing driver has one more surprise for Macomb County Deputies.

A man is killed with a single bullet to the chest; it looks like a murder, but the inquiry takes a surprising turn; a high-speed pursuit turns into rescue mission as the chase ends in a fiery crash.

Rachael DelTondo is gunned down on Mother's Day 2018 in her parents' driveway; the murder investigation takes twists and turns, including multiple suspects, secret romantic relationships and allegations of corruption.

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

Peter Van Sant examines the final chapter in the case against Jacob Nolan, who claims his cousin and psychiatrist, Dr. Pamela Buchbinder, brainwashed him into attempting to kill her ex-over, Dr. Michael Weiss, while in a custody battle for their son.

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.

A retired professor is found murdered with his body burned, shocking his Michigan community.

Dawn Sandoval is gone, and what seems like a typical missing persons case becomes a tangled web of mystery and secrets revealed.

In Jonesboro, Ark., authorities investigate the death of Steven McQuay after his badly beaten body turns up in the back of a pickup truck; when the results of the victim's toxicology report arrive, the entire investigation plunges into a tailspin.

A woman makes a frantic 911 call, saying her neighbor is not breathing and covered in blood; police find 69-year-old Benjamin dead, his house in disarray and money missing; as detectives search for answers, another murder shakes the community.

In Wisconsin, a terrified woman wakes up in her car and finds it's been stolen by a thief, sparking a high-speed police pursuit; a home invasion in Utah turns into a fire rescue, when a man sets the house alight with the residents still inside.

In Florida, deputies respond to a domestic disturbance, but an uncooperative suspect leads to a dangerous stand-off; in Tennessee, an unlicensed driver steals a police cruiser, triggering a high-speed chase.

Ida Mae Ford gets shot dead in the middle of a dark street near her home in Macon, Ga.; detectives race to track down the beloved grandmother's elusive killer, and a shocking crime spree ultimately leads investigators to an unexpected suspect.

Ahmad Shad Laster's loved ones are grief-stricken when he is shot outside a friend's home; Flagler County, Fla., detectives uncover evidence that blows the case wide open, but the hunt for justice tests family bonds and reveals shocking secrets.

In Florida, deputies respond to a domestic disturbance, but an uncooperative suspect leads to a dangerous stand-off; in Tennessee, an unlicensed driver steals a police cruiser, triggering a high-speed chase.

Ida Mae Ford gets shot dead in the middle of a dark street near her home in Macon, Ga.; detectives race to track down the beloved grandmother's elusive killer, and a shocking crime spree ultimately leads investigators to an unexpected suspect.

Ahmad Shad Laster's loved ones are grief-stricken when he is shot outside a friend's home; Flagler County, Fla., detectives uncover evidence that blows the case wide open, but the hunt for justice tests family bonds and reveals shocking secrets.

In Wisconsin, a terrified woman wakes up in her car and finds it's been stolen by a thief, sparking a high-speed police pursuit; a home invasion in Utah turns into a fire rescue, when a man sets the house alight with the residents still inside.

Considered a runaway at first, teenager Skylar Neese's remains are found six months after a surveillance camera captures her climbing out of her window at night.

In Coral Springs, Fla., Surya Toha vanishes without a trace after dropping her sons off at school; video surveillance footage reveals exactly what happened to her.

Michele Reiter bounces back after a failed marriage and a troubled romance, then she goes missing after agreeing to go on a date with a new friend she has met on Facebook.

Seventeen-year-old adoptee Chelsea Schobert feels out of place at home, then she finds acceptance with Shawn whom she meets online, but as their relationship develops, the whole family is drawn into a devastating series of events.

When a young Army veteran returns from war, his family is relieved to have him out of harm's way finally. But danger lurks closer to home when a brief encounter on a dating app leads to a devastating tragedy.

A hopeful 12-year-old singer looks for fame online using her webcam, gathering many admirers; she soon falls for a boy who flatters her, but her dream turns into a nightmare after a shocking photo is shared online.

After a night out in a downtown Denver nightclub, Kenia Monge wanders the streets without a purse or phone; her journey leads to encounters with several men --some good, and one who drives a creepy white van.

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.

After Kate Johnson is murdered in her dormitory room, detectives ask why this innocent young woman was targeted; detectives collect 400 DNA samples, establish a secret task force and track down Johnson's killer to get their chilling answer.

An unsolved murder is linked to a brutal assault; when the killer strikes, multiple homicide detectives team up to bring him to justice.

After a home invasion turns deadly with the near decapitation of a man, police look at the victims' friends and girlfriend.

The discovery of a burned body sends police on the hunt for camera footage that may show the crime.

In Texas, on Christmas Eve 2010, a woman gets a mysterious phone call at work and speeds home to find her 12-year-old son gone without a trace; investigators look at those closest to the boy, but only surveillance footage can lead them to the truth.

The police lack leads after single mom Laura Ackerson leaves for work one morning and never returns, so they turn to surveillance cameras to try to locate her and unearth sinister footage.

In 2010, three men are murdered in a convenience store in Minneapolis's Somali community; the store's CCTV system uncovers evidence of a robbery gone wrong, and footage from cameras around the city could offer clues to the killer's identity.

In Fernandina Beach, Fla., cosmetologist Joleen Cummings goes missing after an appointment, her last at Tangles Salon; CCTV footage shows her car in an isolated parking lot in the middle of the night; a closer look reveals an unlikely suspect.

In Cleveland, Texas, a man guns down Conbino Crasto during a gas station robbery; surveillance video sends police on a hunt for three masked suspects.

Las Vegas Detectives find themselves on the hunt of their careers as they try to track down those responsible for the horrific murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

When a husband discovers his wife and two children brutally murdered, police begin to suspect the killer is someone they've arrested before; one year prior, a disturbed teenager terrorized a family for months by hiding in a most unlikely place.

In Cleveland, Texas, a man guns down Conbino Crasto during a gas station robbery; surveillance video sends police on a hunt for three masked suspects.

Las Vegas Detectives find themselves on the hunt of their careers as they try to track down those responsible for the horrific murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

When a husband discovers his wife and two children brutally murdered, police begin to suspect the killer is someone they've arrested before; one year prior, a disturbed teenager terrorized a family for months by hiding in a most unlikely place.

In Fernandina Beach, Fla., cosmetologist Joleen Cummings goes missing after an appointment, her last at Tangles Salon; CCTV footage shows her car in an isolated parking lot in the middle of the night; a closer look reveals an unlikely suspect.

A tip from a missing persons network helps identify the body of a John Doe murder victim, leading investigators to unravel a dark tale of betrayal.

In the suburbs of Atlanta, Ga., a pregnant woman and her fiancé are kidnapped on the night before their baby shower and the fiancé's family receives ransom calls that same night.