Jo Guardini, now the peaceful owner of a charming inn by the banks of the River Marne, once was a dreaded gangster. The respectful citizen does not want to have anything to do with the underworld any more. Unfortunately, two of his former accomplices kidnap a little girl and decide to hide her in his hotel. What will Jo do : side with the law in the person of inspector Loriot or have a relapse in crime?
| Directing | René Jolivet | Director |
| Writing | René Jolivet | Writer |
| Production | Jérôme Goulven | Producer |
| Production | Pierre Gurgo-Salice | Producer |
| Sound | Joseph Kosma | Original Music Composer |
| Camera | Nicolas Hayer | Director of Photography |
| Editing | Suzanne Sandberg | Editor |
| Art | Lucien Carré | Production Design |
| Production | René Montis | Production Manager |
| Sound | Roger Cosson | Sound |