Tongues start to wag after a famous Parisian music hall dancer is rushed to hospital after being found poisoned by arsenic at the Concert Mayol.
| Directing | Pierre Méré | Director |
| Camera | Roger Duculot | Camera Operator |
| Sound | Maurice Carrouet | Sound |
| Costume & Make-Up | Lala Janvier | Makeup Artist |
| Crew | Pierre Dolley | Cinematography |
| Sound | Marcel Landowski | Music |
| Production | Bernard-Roland | Producer |
| Production | Georges Sénamaud | Producer |
| Writing | Jacques Chabannes | Writer |
| Writing | Lucien Rimels | Writer |