A teenager with an obsession for serial killers and Satan goes on a night-long murder spree, leaving a community forever changed.

Police discover a family dead in their mansion. The scene includes a horror film flickering on a screen and a bloody mask nearby. A letter hinting at the demon from The Exorcist leads investigators to believe the case is more complex than a murder-suicide.

For years, women in a small town have been attacked and gone missing. A major breakthrough in the case leads law enforcement to the shocking realization that the killer has been in their community all along.

When Jose Herran fails to call his mother on her birthday, she knows something is wrong. As investigators look into his disappearance, they uncover a monstrous plot involving two men who are believed to be responsible for his murder.

Fourteen-year-old Amber Dubois disappears on a Friday the 13th. A year later, 17-year-old Chelsea King goes missing in the same area. A survivor links the two cases, prompting law enforcement to act quickly to stop the killer before another Friday the 13th murder occurs.

A young woman vanishes after getting into a patrol car, and for 35 years, she remains a Jane Doe. As fear consumes the town, a chilling clue discovered through hypnosis helps to crack the case and expose a predator no one suspected.