Fictionalized reconstruction of the life of the French spy Marthe Richard who decided to contact the secret services during the First World War.
| Directing | Raymond Bernard | Director |
| Sound | Antoine Archimbaud | Sound |
| Sound | Arthur Honegger | Sound Director |
| Writing | Georges Ladoux | Writer |
| Writing | Bernard Zimmer | Writer |
| Production | Raymond Hakim | Producer |
| Production | Robert Hakim | Producer |
| Sound | Arthur Honegger | Music |
| Camera | Charles Bauer | Director of Photography |
| Camera | Robert Lefebvre | Director of Photography |
| Editing | Charlotte Guilbert | Editor |
| Art | Jean Perrier | Production Design |
| Production | André Gargour | Production Manager |
| Sound | Roger Desormière | Conductor |