As a favor to his grandmother, singer Rudy Hirigoyen agrees to sing incognito, under the name Romano, in the nightclub his cousin Gustave has just opened in a small seaside resort. The staff and musicians are students camping out in the pine forest near "L'Auberge Fleurie". Grandma has rented the apartment above the club to summer guests: Commandant Portafaux and his wife.
Jacques Hélian, an attractive charm singer, too stifled by the jealousy of the radio director's niece, flees with his orchestra, on the advice of his secretary Bob. They fail in a small village, where there is a boarding school for young girls. Bob responds to the love letters the teacher sends to the handsome singer.
Charming, charming but unstable, Rudy is married to Lydia. He dreams of becoming a famous painter. His father-in-law offers him a contract: if he stays in the same job for at least two months, he can devote himself to painting. Under the name of his friend Ravot, Rudy is hired to teach gymnastics at a girls' college. Things soon get complicated. The jealous Lydia, who plays student, keeps an eye on her husband. The headmistress glares at him, and the arrival of the real Mme Ravot doesn't help matters. The contract is almost not honored, but as in the best comedies, everything works out.
