On the run from international police, Special Agent Lemmy Caution arrives in the South of France and soon becomes embroiled in a scheme with the infamous gangster Siegella. Whilst seeming to co-operate with the underworld boss, Lemmy is secretly acting for the FBI, and intends using Miranda Van Zelden, a wealthy heiress, as bait to trap a gang of crooks and put an end to Siegella's exploits...
| Directing | Jean Sacha | Director |
| Writing | Peter Cheyney | Novel |
| Writing | Jacques Berland | Writer |
| Writing | Marcel Duhamel | Dialogue |
| Camera | Marcel Weiss | Director of Photography |
| Editing | Paulette Robert | Editor |
| Production | Georges Sénamaud | Producer |
| Sound | Jean Marion | Music |
| Art | Alfred Marpaux | Production Design |
| Costume & Make-Up | Nicole Bouban | Makeup Artist |
| Costume & Make-Up | Omer Bouban | Makeup Artist |
| Sound | Jacques Carrère | Sound |
| Sound | Julien Coutelier | Sound |
