When Detective Mark Lewis (Frank Grillo) is called to a local house, he finds the bodies of three slaughtered college students. The only survivor, John (Dustin Milligan) claims they held a séance to summon ghosts of people killed in the house years earlier. Now, three of his friends are dead and two are missing - including his pregnant girlfriend.

Teaming up criminal psychologist Dr Elizabeth Klein (Maria Bello), Det. Lewis investigates the videotapes discovered at the scene to try and uncover what really happened that night. What they find is more terrifying than they ever could have imagined...