Pete and Berg throw a Halloween party. Sharon is dressed as a mermaid but Johnny goes as a cowboy instead of an angler - she is not happy. Berg goes as a mad doctor, and strange things start happening. They run out of beer and Pete goes to the pizza place for some more beer only to find Berg tied up. The question then is, who is at the party impersonating Berg? This psycho Berg kills Ashley and Johnny with his axe. Sharon flees to the pizza place for safety followed by the psycho Berg. In a mix-up, Pete kills the real Berg. At the end we find out who the psycho Berg really is and why he is killing everybody.
—jem