Poor Jerome Littlefield. He wants to be a doctor – but that's not exactly the perfect career choice when you're hopelessly squeamish. So he settles for the job of orderly at the Whitestone Sanitarium, a career move that's guaranteed to keep the patients – and viewers – in stitches!
Jerry Lewis plays Norman Phiffer, a proud man in a humble life, who doesn't know that his girlfriend, Barbara, is heir to the Tuttle Department Store dynasty. Mrs. Tuttle, Barbara's mother, is determined to split the two lovers, and hires Norman in an attempt to humiliate him enough that Barbara leaves him. Will she ruin their love, or will he ruin her store?
Playboy songwriter Brad Allen's succession of romances annoys his neighbor, interior designer Jan Morrow, who shares a telephone party line with him and hears all his breezy routines. After Jan unsuccessfully lodges a complaint against him, Brad sets about to seduce her in the guise of a sincere and upstanding Texas rancher. When mutual friend Jonathan discovers that his best friend is moving in on the girl he desires, however, sparks fly.
Nightclub performer Larry wants Joe and his sister Tiny to join the act. The only problem is that Tiny is afraid to sing in front of people. They take her to a psychiatrist (Moe) who cures her, and the act is a success.
The Singer Duke Mitchell meets Sammy Petrillo in this parody of Martin & Lewis. They arrive on a jungle island, where a mad scientist played by Bela Lugosi makes human esperiments.