David Sumney Sr. and his wife Margaret devote their lives to spoiling their only son, David. However, when his parents divorce, David Jr.'s anger escalates.

Two cousins grow up together in rural Kentucky but have different lives. A 911 call reports a shocking event and tears the families apart.

Brittany Steier devotes her life to being a mum. But when the father of her children becomes increasingly violent, her decision ends up costing her life.

When the father of Barbara Pacheco's children becomes increasingly violent and unpredictable, Barbara is forced to make a decision that costs her life.

Behind closed doors, India Mackey's relationship with her boyfriend is painful. A day after her 20th birthday, India learns what he is truly capable of.

In public, Max and Janeene Jones appear to have the perfect marriage. But 20 years later, an undercover police investigation reveals an unexpected killer.

In 2005, a monster stalks the summer streets of Phoenix. As the body count keeps rising, can the police catch the killer before he strikes again?

In the summer of 2014, a peaceful community is shaken to its core when a local teenager is found dead. Who in this small town could possibly do this?

Combining never-before-seen footage with an interview with the daughter of one of America's most notorious killers, we get closer than ever to an American Monster.

Brian and Randi are newly married. When Brian meets the fun-loving Blaine at work, their friendship over Blaine's low-budget horror film takes a dark turn.

After taping their TV show in rural Vermont, Chrissy and Charlie Billis have a terrible car accident. Only one survives. Do tapes offer a clue to what happened?

After moving to a remote Colorado town, Ron and Cynthia Phillips and their kids struggle to adjust. But their home videos mask darker impulses that lead to murder.

Ohio biker Richard Beasley values family, faith and helping others. When he vanishes, police find an online monster has been luring local men to their deaths.

Outside LA, sword collector Neal Williams is the house-husband and wife Manling supports the family - until Manling finds her family slaughtered at sword point.

In Pennsylvania, Kevin and Joanne Dowling like to capture their kids' milestones on video. But when a woman in a nearby town is shot dead, Kevin is accused of murder.

In Albuquerque, Mike Snyder starts a family with his partner, capturing it on home video. But after being diagnosed with a serious illness, he vanishes.

When Sherri Dally mysteriously vanishes, detectives unravel a suspicious timeline of events, leading them to a web of deceit and a shocking double life.

US Air Force sergeant Nathan Paet and his family appear to live a blissfully normal life - until a horrific attack leads to their destruction.

In California, an intruder brutally attacks and kills Joan Dawley. Secret home movies uncover a shocking tale of deceit, and a monster lurking behind the scenes.

Dr John Hamilton and his wife Susan have it all. They're successful, respected and very much in love - until a vicious Valentine's Day murder tears them apart.

When Lanny Horwitz is found murdered in his own home, it unleashes a shocking tale of jealousy and infidelity, leaving every member of the family a suspect.

Stephen and Becky Vargas appear to have it all. But behind their picture-perfect life, an unthinkable violence ends their marriage with murder.

When Terry Thrift vanishes, no one has answers. The mystery of his disappearance - and the salacious betrayal behind it - isn't solved for 20 years.

When a father-of-two suddenly vanishes, his friends hint that he led a secret life. But it remains a mystery for years - until a tip reveals the jaw-dropping truth.

A video blogger posts every detail of her life online. One night, intruders break in her home and kill her husband. Will her endless videos provide a clue as to why?

Video footage, police interview tapes and courtroom footage reveal the double lives of the US's most terrifying killers and abductors before they were caught.

On New Year's Eve, Brent Cotta's popular wife, Cassie, mysteriously vanishes. The discovery of a shallow grave leads to the emergence of a horrific truth.

When outgoing Beth Spaulding and shy Jason Risenburg meet, it seems a perfect match. But a series of disasters rip apart this once-perfect couple.

When Doug meets Rose, they quickly fall in love and later marry. But behind the perfect fa?ade seen in home videos, lies and deceit begin to surface.

Rebecca Thudin was a successful, driven woman who seemed to live the perfect life. But, after meeting an older man at the gym, her life takes a dramatic turn.

Carol-Ann and James Sharp seem like the perfect couple. But behind the veneer of happiness in home movies lie dark secrets - and an unlikely killer.

In a small town, the lives of two couples are unravelled by a series of betrayals, deceit and violence. How did a love affair result in a crime of passion?

When Dr Jim Kohnle is found dead in a fire at his family home, evidence and tip-offs lead police to question if it was an accident, suicide or murder.

Todd and Rachel Winkler seemed to be a happily married couple. But, behind closed doors, the couple faced many issues and it eventually led to a brutal murder.

Arthur Burney was a fun-loving, protective father and grandfather. But, one day he walks out on the family after falling in love with another woman.

A millionaire doctor and his wife enjoyed a glamorous lifestyle. But, behind closed doors, they were troubled by deceit and violence which eventually turned deadly.

Two men had been best friends since growing up together in California. What caused their relationship to break down in a devastating and bloody way?

Lindsay and Jason seemed to be on amicable terms after agreeing to divorce. But, a brutal murder suggests there was more to their failing marriage than meets the eye.

A popular teacher is found dead in her Staten Island condo. As detectives dig deeper into the case, they uncover a wealth of secrets, lies and sins.

High-school sweethearts appear to be living an idyllic life with their three small children. But, hidden tensions and addiction trigger a heinous double-murder.

Dianne and Donnie settle down together in a wealthy Chicago suburb. They take the appearance of a power couple, but behind the smiles are horrifying secrets.

Sandy Miles and her daughter appear to have an unbreakable bond. When Sandy is found brutally murdered, the investigators can scarcely believe what they uncover.

A couple get embroiled in a contentious divorce and a bitter custody battle over their son. The tension builds to a dark and bloody attack.

A couple raise their children in an idyllic rural town. But, their quiet lives are turned upside down when two of the family are found brutally murdered.

In Texas, a talented young woman has dreams of becoming a lawyer. But, a whirlwind relationship with her boyfriend leads to a horrifyingly dark crime.

A Utah family is torn apart after a disgruntled ex-husband, unable to move on, comes looking for revenge on his former wife after she gets remarried.

In Michigan a mother is murdered by her jealous ex-boyfriend. Friends and family examine home video footage and question if there were any warning signs.

In Knoxville, Tennessee, a seemingly perfect couple were secretly living a nightmare. The wife was found guilty of soliciting her new partner to kill her former husband.

In 2017, an unimaginable betrayal leads to the death of a woman in Louisiana. Police discover she has been murdered by her estranged husband.

In 1991, a seemingly close-knit family is destroyed by a series of brutal killings by one of their own. What could have caused this murderous betrayal?

In 2012, biker and single dad Brandon Duran's body was found at the bottom of a pond and covered in concrete. Who was responsible for this shocking crime?

In 2018, Steve Clayton died in unusual circumstances. His body was found at the bottom of the stairs and the autopsy showed signs of poisoning.

In December 2001, 20-year-old Dustin Wehde was brutally shot dead in his neighbour's house. What happened to cause this tragic event in Iowa?

In 1997, 78-year-old Jean Schwarzkopf was murdered in Florida. The retiree's husband owned a jewellery business, was she murdered for her diamonds?

In 2014, 19-year-old Keonte Chavis was murdered and left in the woods in Seale, Alabama. With little forensic evidence, police turned to her relatives.

Joseph Green Brown was on death row for 13 years before his convictions were overturned. Decades later, he would be charged for the murder of his wife.

Charlene Wold has a seemingly perfect family life. But her son, Logan, develops addiction problems that eventually spiral into a horrific crime.

Daycare worker Avis Banks and teacher Keyon Pittman quickly fell for each other. But a secret relationship would destroy their promising future together.

After two failed marriages, Tabatha Spake can't take much more heartbreak. Just when she finally finds happiness, a monster turns her dreams into a nightmare.

Talented artist Kira and marketing manager Matthew appear to be happily married. Until one day, a maintenance worker makes a grisly discovery.

Seven years into their marriage, something changes between a husband and wife - and a dirty secret at work will lead to a deadly confrontation.

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

Michelle Lira dreams of being a doctor, until one day a rollercoaster romance steers her life in a different direction, straight into a deadly ambush.

When teenager LaTonya Taylor gets pregnant, her mum vows to support her no matter what. But someone’s hiding resentment that will destroy the whole family.

When newly divorced Wendi Davidson meets charming Brian Chevalier, it seems to be the perfect remedy for heartbreak. But all is not as blissful as it seems.

After her divorce Joann Albanese meets a new man. But by the time Joann discovers her boyfriend isn't who he claims to be, it's already too late.

Ashley Pittman thinks she met her perfect match when she marries Jeffrey Scott. But behind the closed doors of her new life, a secret threatens to turn deadly.

Ramon Sosa is a father of three who runs a successful boxing gym in Texas. He feels like the luckiest man alive until someone marks him for murder.

Property developer Robert Pann and trainee nurse Bernice Gray seem like the ideal match. But buried secrets are about to end this picture-perfect romance.

Twenty-one-year-old mother, Lauren Kidd, always follows her heart. It leads her to happiness, but there's a darkness lurking that no one can stop.

Video footage, police interview tapes and courtroom footage reveal the double lives of the US's most terrifying killers and abductors before they were caught.

Gil and his family are living an idyllic existence until an accident changes everything. Just as Gill seems to have moved on, someone close hatches a deadly plot.

After years of searching for love, Doris thinks she's finally hit the jackpot with an old friend named Mark. But something dark is taking hold of their marriage.

Divorced mum Krystal is delighted when she marries single dad Nathan. Little does she know, her blended family will soon turn into a nightmare.

Randy Ferguson’s life changes forever when he meets single mother, Angela Phillips. But the beautiful life they build together hides an ugly secret.

When 20-year-old Chloe Randolph gives birth to a baby boy, her family is over the moon, but what should be a blissful time turns into a waking nightmare.

Video footage, police interview tapes and courtroom footage reveal the double lives of the US's most terrifying killers and abductors before they were caught.

In Genoa, Ohio, John Eichner, his wife and kids look like a happy bunch, but behind closed doors a disturbing pattern of torment and gaslighting plays out for years.

Popular and outgoing, Rowena aspires to be a teen psychologist. But her dreams turn into a nightmare when a pathological love connection shatters everything.

Cindy Monkman is looking for something serious and Michael Apelt seems to be her perfect match, until their first Christmas together turns into a horror story.

Roger Harris and his wife Donna built their dream home in Florida, but just after the birth of their second son, a vile secret threatens their sweet, simple life.

Ben Renick is a world-renowned breeder of exotic snakes. He's not even 30 and he seems to have it all - until someone he loves hatches a venomous plot.

To grandparents Ron and Kay Wilkson, family comes first. But in 2016, something evil is prowling close to home, and not everyone will make it out alive.

A Delaware mum loves a night out on the town. But what starts as innocent fun will lead this 40-year-old down a very dark path paved with jealousy and deadly rage.

On the surface, police officer Albert Pacheco and his wife Cathy live a charmed life in Hawaii. But this seemingly perfect household is hiding something evil.

Young parents Gary and Tasha Bentley live the good life. But after just five years of marriage, someone plots an exit strategy that ends with a bullet.

After 15 years of marriage, Roberta and Ken Samard appear to be living their dream life in Oregon, until a morning 911 call exposes the ugly truth.

Carla Lewis gives her husband the money to open a medical marijuana store. But spiralling costs and rumours of illegal activities sow the seeds for murder.

Jeffrey and Jeannine Glanda appear to have it all. But when someone craves control more than love, it sets in motion a deadly plot ending with a suspicious car accident.

Daniel Halseth, lives for visitations with his kids. But in 2020, Daniel finds himself drawn into a web of lies and a plot that ends with a deadly house fire.

Mystery shrouds the Iraqi community in Michigan when a devoted father is found axed to death. A digital trail leads police to an evil plot.

Video footage, police interview tapes and courtroom footage reveal the double lives of the US's most terrifying killers and abductors before they were caught.

A dream move to Fort Worth, Texas, for a pair of new parents ends in a bloody nightmare when a twisted mind plans to commit the most terrible evil.

A weekend retreat in the woods turns into a nightmarish trip for a California family when someone has plans to burn everything down.

Cheri and Brian dote on their only child, Scott, and his kids. The close-knit family thrives until a shocking betrayal tears them apart.

Tina Swor and partner John Dalton start a new life in Spirit Lake, Idaho. But John's erratic behaviour and love of guns plague their fresh start.

Matthew Terry has a dark side that emerges when he drinks. He's jailed for a violent attack on his girlfriend, but tragedy strikes again when he gets out.

Alessia Mesquita falls in love with Rashod Newton. But Rashod's unpredictable behaviour forces Alessia to make a decision that will have deadly consequences.

Richard wants to have the good life by any means possible. When bad choices lead to a prison sentence, he makes a deadly decision, and his secret is exposed.

Ann Metz lives for her family. Her husband Marshall despises Ann giving her time to anyone but him, and he will do anything to keep hold of her.

Christie believes she's found true love in Marcus. But as the relationship sours and Marcus becomes violent, Christie begins to fear for her life.

Vincent Taylor is stuck in a controlling relationship with his Jekyll and Hyde wife. After a violent knife attack results in Vincent’s death, his wife claims she was the victim of an abusive relationship. However, Vincent’s phone will reveal the truth.

Rogelio Morales is a handsome Marine who sweeps Margarita Sanchez Lemus off her feet. Their whirlwind romance leads to marriage and the birth of a beautiful son. Behind Rogelio’s winning smile lurks a monster who will soon show his true colors.

When Jeff Silvernail finds his partner dead at home, it appears a burglary gone wrong. But police soon uncover it is, in fact, the ultimate betrayal.

On the night of her son’s wedding, Christy is found dead. As they investigate, police uncover a dangerous marriage and a violent monster.

After years of shooting practice, a West Virginia beauty takes her hobby too far after her ex-husband allows her back into his home.