Cory and friends visit a broken down old shack in the middle of nowhere to investigate the mysteries of his past. After realizing that his grandparents dabbled in black magic, demons and the undead begin to attack, taking Cory's friends down one by one.
A bunch of young people are invited to a Caribbean cruise on a gangster's yacht, to distract the attention of the authorities. Unfortunately, a mutant cat which escaped from a test laboratory also gets on board, and kills most of the passengers.