A detective investigating a rash of mysterious drug-related deaths finds a society of Satanists bent on bringing about the End Times.

An evil demonic scarecrow resurrects the dead as ravenous cannibalistic zombies who feast on the living. A motley assortment of folks who include a bunch of bickering college kids, a trio of dangerous escaped convicts, an equally lethal pair of savage hoodlums, and three sisters do their best to stay alive and survive this harrowing ordeal.

Party house is actually portal to evil dimension, and horde of murderous beings slaughter partygoers, then homicidal children attack cars, before evildoers are all pulled back through the portal to invade another dimension.