In 1920s Paris, violinists and lifelong friends Pierre Belcroix and Marcel Blanc are happy with their lives, although Marcel has become famous and Pierre has not. Pierre is married to Romaine, a stylish young flapper. However, Marcel meets and falls in love with her, which Marcel little suspects.
| Actor | Role |
|---|---|
 Sabine AzémaRomaine Belcroix | Romaine Belcroix |
 Fanny ArdantChristiane Levesque | Christiane Levesque |
 Pierre ArditiPierre Belcroix | Pierre Belcroix |
 André DussollierMarcel Blanc | Marcel Blanc |
 Jacques DacqmineDr. Rémy | Dr. Rémy |
| HHubert GignouxLe Prêtre | Le Prêtre |
 Catherine ArditiYvonne | Yvonne |