In Paris, Bob Montagne is practically synonymous with gambling -- and winning. He is kind, classy and well-liked by virtually everyone in town, including police inspector Ledru. However, when Bob's luck turns sour, he begins to lose friends and makes the most desperate gamble of his life: to rob the Deauville casino during Grand Prix weekend, when the vaults are full. Unfortunately, Bob soon learns that the game is rigged and the cops are on to him.
| Production | Jean-Pierre Melville | Producer |
| Production | Serge Silberman | Producer |
| Editing | Monique Bonnot | Editor |
| Directing | Jean-Pierre Melville | Director |
| Camera | Henri Decaë | Director of Photography |
| Sound | Eddie Barclay | Original Music Composer |
| Production | Roger Vidal | Producer |
| Sound | Jo Boyer | Original Music Composer |
| Art | Claude Bouxin | Production Design |
| Writing | Auguste Le Breton | Writer |
| Writing | Jean-Pierre Melville | Writer |
| Sound | Pierre Philippenko | Sound |
| Sound | Jacques Carrère | Sound |
| Costume & Make-Up | Ted Lapidus | Costume Design |
| Production | Florence Melville | Production Manager |
| Production | Philippe Schwab | Unit Production Manager |
| Directing | Leo Fortel | Assistant Director |
| Directing | François Gir | First Assistant Director |
| Directing | Yves-André Hubert | Assistant Director |
| Art | Raymond Aupée | Construction Coordinator |
| Art | Martine Sachot | Assistant Art Director |
| Editing | Jeanne-Marie Favier | Assistant Editor |
| Camera | Maurice Blettery | Camera Operator |
