A comedian who is everything but funny is pushed to his limit when a man heckles him off stage. The comedian takes the man prisoner and will only spare his life if the man can tell him a joke and make him laugh. When the man tells a joke that makes the comedian laugh, the comedian decides to kill him anyway. When the comedian uses the joke in his act, it is the only joke that gets a laugh. So he comes up with a plan picking a heckler out of his crowd at each performance. With each new joke is another life he takes until he is the funniest comedian in town... also becoming a serial killer.