A one-time prosperous hog slaughtering plant called 'Bacon & Sons' now lies derelict and unused on the outskirts of Lakesidem a small rural town. However, when the local sherrif orders the closure and condemns the area for demolition, the owner Les Bacon swears revenge on all that have caused him harm. Les, with the help of his fat son Buddy (who constantly snorts), lures his enemies to the old slaughterhouse and kills them off one by one. Meanwhile, a group of school kids decide that the slaughterhouse would be the ideal location to shoot their own horror movie. One night, after an electrical failure at the school party, a couple dare their respective girlfreinds into spending an hour alone up at the old slaighterhouse. Les and Buddy continue their killing spree by starting up the old slaughterhouse machinery for a night of terror.
