In a future uncomfortably close to today, the apocalypse has surpassed all expectation. Hideous demons roam the streets in an orgy of terror, drawing pleasure from torturing humans as sadistically as possible. Ira, a young San Francisco artist, becomes involved with a strange group of scientists and philosophers trying desperately to end the siege. Ira and his allies believe these demons were summoned. But what if it isn't demons who possess men, but men who posses the demons?