1944. Léon Duchemin owns a restaurant with his sister. His clients are Germans, Résistance et black marketeers. Léon unwillingly joins the Résistance when a British pilot is shot down and hides in his attic and, through a series of mishaps, he accidentally steals the plans for Hitler's V1 missiles.
| Directing | Marcel Camus | Director |
| Writing | Marcel Jullian | Writer |
| Writing | Colonel Rémy | Writer |
| Production | Georges de Beauregard | Executive Producer |
| Editing | Andrée Camuseix | Editor |
| Editing | Andrée Feix | Editor |
| Camera | Alain Levent | Director of Photography |
| Art | Guy Maugin | Set Decoration |
| Art | Pierre Guffroy | Production Design |
| Art | Albert Rajau | Production Design |
| Costume & Make-Up | Michèle Richer | Costume Design |
| Costume & Make-Up | René Daudin | Makeup Artist |
| Sound | Jacques Carrère | Sound Mixer |
| Sound | Claude Villand | Sound Mixer |
| Sound | Claude Bolling | Original Music Composer |
| Crew | Alain Levent | Cinematography |
| Costume & Make-Up | René Daudin | Key Makeup Artist |
| Production | Alexander De Grunwald | Assistant Production Manager |
| Production | Bruna Drigo | Assistant Production Manager |
| Production | Roger Ferret | Unit Manager |
| Production | Roger Scipion | Production Manager |
| Directing | Alain Corneau | Assistant Director |
| Art | Roger Bollengier | Property Master |
| Sound | Jean-Pierre Ruh | Sound Engineer |
| Sound | Guy Odet | Sound Assistant |
| Crew | Roger Bollengier | Special Effects |
| Crew | Jacques Anton | Stunts |
| Crew | Odile Astié | Stunt Double |
| Directing | Claude Carliez | Action Director |
| Crew | Rémy Julienne | Stunt Driver |
| Crew | Michel Berreur | Stunts |
| Camera | Roger Gleize | Camera Operator |
| Camera | Jean Klissak | Still Photographer |
| Camera | Pierre Levent | Camera Operator |
| Camera | Armand Marco | Camera Operator |
| Camera | Roger Robert | Key Grip |
| Editing | Arlette Lalande | Assistant Editor |
| Directing | Patrick Aubrée | Script Supervisor |
| Production | Jacques Drouard | Administration |
| Crew | Henri Huguen | Technical Advisor |
| Crew | Daniel Breton | Stunts |
