Everything starts when a journalist François decides to investigate the world of working class people. He gets into the lives of Claude, a worker and his wife Lily who has left him.
| Actor | Role |
|---|---|
 Jean-Michel FolonFrançois | François |
 Patrick DewaereGaston, dit Johnny Cash | Gaston, dit Johnny Cash |
 RufusClaude | Claude |
 ZouzouLily | Lily |
 Juliette GrécoFlo | Flo |
 Jean-Pierre BissonLe frère de Flo | Le frère de Flo |