Bedtime for Bonzo

Peter Boyd (Ronald Reagan), a college professor of psychology, is in love with Dr. Valerie Tillinghast, the college dean's daughter. Dean Tillinghast (Herbert Heyes), a firm believer in heredity, opposes their impending marriage on the grounds that Peter's father was a notorious criminal. Peter sets out to prove environment is more important than heredity by training the science department's chimpanzee in moral values. He take Bonzo (Bonzo) home and hires a pretty girl, Jane Linden (Diana Lynn), as a trainer/mother combination. Complications arise from having such a pretty "mother" in Professor Boyd's home and from the chimp's predilection for stealing jewelry.