Claudio is a young man who is the lead singer of the Jolly Fives. The band has been hired for the winter season at the winter resort of Abetone. But on his way to the place, Claudio 's old car breaks down. He is helped by Beniamino, the caretaker of a high school for girls who offers him to accommodate him provisionally. Chance has it that the music teacher of the school falls ill and Beniamino persuades the headmistress to accept Claudio as a replacement...