When two teenage girls discover they are dating the same boy, they go to war with each other on social media and in real life, with tragic consequences.

When investigators accuse cast members of murder, co-stars replay past scenes and realize they are in the presence of evil.

Christine's life with abusive spouse Shane is a cycle of fear, humiliation and violence. When she escapes with her kids, he pursues her - with a bloody outcome.

Michelle ends her relationship with alcoholic Richard and wants to move on with her life. But he can't let go and his obsession leads to violent repercussions.

When Leesa Nascimento is killed by a shot in the head, a recently sacked co-worker, is traced after evidence is found that ties him to the murder.

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.

Police dogs Meg and Thor are reunited with their handler Martin after he broke his leg. They track a mysterious BMW with suspected links to drug dealing.

Rookie Alsatian Kane has a busy night shift with handler, PC Harris, going after a burglar. New handler Nikki investigates a bomb scare with explosives detection dog Oscar.

In Liverpool, new recruit Chico finds a huge stash of cannabis up an alleyway, helping his handler PC Bartley disrupt a major drugs operation.

In Yorkshire, Alsatian Thor joins a firearms unit and storms a derelict building. Meanwhile, sniffer dog Meg raids a flat with possible drug dealing links.

When Frank Hilley is struck down by a mysterious sickness, the town of Anniston grieves. But suspicions arise after his daughter also falls seriously ill.

The Yates family moves to Spokane to find it hit by a serial killer targeting young women. The family's home videos expose one of America's most infamous killers.

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.

In a picturesque small town in Wyoming, a girl disappears at twilight. With a carnival in town, the suspects pile up as police lead the hunt for a dangerous killer.

When a nine-year-old child disappears from an amusement park in Long Island, New York, the race is on to stop a dangerous child abductor.

Teen mum Cheyenne finds acceptance in a new crowd by moving in with two girls and their boyfriends. But after Cheyenne gets her own beau, distrust leads to death.

A group of girls begin lifelong friendships at church camp. Life takes them down different roads and their bonds remain until one of them disappears.

After a baby is found abandoned along Ohio's Scioto River, police discover the child's mother has been tragically murdered. Is the killer connected to the woman's past?

The body of a beauty queen is found floating in a lake. As officers dig deeper into her list of admirers, they discover the fine line between love and hate.

Steve and Amy investigate potential violent paranormal activity that is terrorizing a vulnerable mother and her young child. What will they discover?

The team investigate a cursed castle in Glencoe, where Clan Campbell murdered over 30 MacDonalds in cold blood as they slept. Can they survive the night?

Comlongon Castle and Hotel is known for its infamous white and grey lady ghosts. Gail and Chris attempt to communicate with these tortured women.

The team splinters when Tim and Scott attempt to summon a demon despite Sarah and Sapphire's objections. The experiment exposes a new threat directly tied to Karen.