A young man finds his divorced mother having sex with a man in a Santa Claus hat and shoots them both dead. Years later, now thinking he is Santa Claus, the man develops an obsession with an erotic horror film star named Raven and begins stalking her.

The surviving member of a devil-worshiping family uses a camcorder to videotape himself murdering young women during sex. The girlfriend of one of his victims goes to a detective to try to find her friend.

During an ever-growing epidemic of zombies that have risen from the dead, two Philadelphia SWAT team members, a traffic reporter, and his television-executive girlfriend seek refuge in a secluded shopping mall.