History is alive with tales of ghosts, specters and phantoms whose anguished cries rarely escape to the mortal plane. And rarely are the living able to commune with the dead.

A late-night disturbance call leads Lazarus Jones of the Detroit Police Department to an abandoned school, the site of a gruesome multiple murder some 10 years past. What should have been a routine visit becomes a disaster of supernatural proportions when hordes of malevolent, demonic spirits—tortured souls imprisoned for eons and lusting for vengeance—are accidentally unleashed. Man-made weapons will barely keep the demons at bay; only through mastery of the paranormal will Jones be able to hunt down and capture the howling fiends before they destroy the world of the living.