A Jolly Bad Fellow

Goofy British black comedy stars McKern as a nutty-but-evil professor who discovers a poison that drives victims into hysterics and then kills them without a trace. Originally intending to use the poison for the good of mankind, McKern snaps when university politics threaten his experiments, and he begins to bump off his enemies with the poison. Not only does this kill his victims, but the hysterical aspect of the drug forces them to humiliate themselves before they die. Eventually McKern's well-endowed girl friend and lab assistant, Munro, begins to suspect that she's next on his list and threatens to expose him unless he divorces his wife and marries her. Calmly ...