For fun and to dazzle his wife, the novelist Morgan steals a ring and gets rid of it in the costume jewelry section of a supermarket. Sophie buys the diamond, which forces the novelist to embark on crazy adventures to recover the jewel.
| Directing | Jacques Daniel-Norman | Director |
| Writing | Jacques Daniel-Norman | Screenplay |
| Writing | Frederick Gotfurt | Screenplay |
| Writing | Victor Skutezky | Screenplay |
| Production | Lucien Masson | Producer |
| Production | Antoine de Rouvre | Producer |
| Sound | Vincent Scotto | Music |
| Camera | Victor Arménise | Director of Photography |
| Editing | Fanchette Mazin | Editor |
| Art | Robert Dumesnil | Art Direction |
| Production | Georges Bernier | Production Manager |
| Sound | Lucien Legrand | Sound |