A family goes on vacation and stumbles upon a piece of jewelry and the night takes a turn for the worse.

The Exorcist has terrified audiences since 1973, but few know the story is true. For the first time on television, investigators expose shocking secrets about the real-life exorcism of a 13-year-old boy that inspired an iconic horror film.

Dean sees mafia boss Santelli whack an FBI infiltrator and is relocated to a remote cabin in the Sierras for protection. While Santelli's crew tries to locate him, Dean gets company from the beautiful Monica.