A group of college students at an all-night party dare each other to play a Ouija board. But what starts out as fun rapidly turns into a nightmare when the glass spells out the message "ALL DIE" and a demon is awakened with an appetite for vengeance against those who summoned him. One by one, the students fall prey to a succession of disturbing murders. With time running out and the body count growing, the remaining friends realize they can't trust anybody, not even each other.