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.

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.

Investigators respond to calls of an attack on a man in front of a house on Elm Street and discover a bloody quadruple homicide. Detectives soon discover there is more to these murders than meets the eye - involving torture, revenge, and even Satan.

During one of the biggest street festivals of the year in Cincinnati, detectives discover the body of a young man hidden inside a trash can. With few leads to go on and suspects at every turn, police aren't sure who they can trust — and who will be next.

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.

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.