Gérard Favier is a famous composer who is deeply in love with his wife Sylvia. The couple meet Monelle, a pretty, talented young pianist and ardent admirer of Gérard Favier. The musician takes the young woman under his wing and launches her to success. But a tabloid reveals an affair between the composer and his protégée.

Gérard Favier, famous composer
Monelle Picart, young pianist
Sylvia Favier, Gérard's wife
Christine, Monelle's friend
Jules Picart, Monelle's brother
Michel Picart, the father
Ludo, Favier's friend
Critic
Lucky charm merchant
Jean, restaurant waiter
Critic
Claude, Monelle's lover