Walter, a reporter and photographer, meets Catherine in a train. The young lawyer recently gained an acquittal for a man who killed his alcoholic father to save his mother. Campaigning against alcoholism, she asks Walter to help her unmask a wine merchant engaged in shady practices.
| Directing | Henri Decoin | Director |
| Writing | Henri Decoin | Writer |
| Sound | Charles Aznavour | Music |
| Writing | Michel Audiard | Writer |