Clayton Poole (Jerry Lewis) is a TV repairman who still has feelings for his old high school girlfriend, Carla Naples (Marilyn Maxwell). Trouble is, Carla is now a glamorous movie star and the wife of a Mexican bullfighter. When her husband is tragically killed and she needs to keep the baby a secret, the star turns to Clayton for help. He is thrilled at the prospect of acting as babysitter. But Carla neglects to tell him she actually had triplets.