Maigret is about to leave for the holidays but a colleague asks him for help in investigating the mysterious murder of a stripper and a noblewoman, both of which took place in Pigalle.
| Directing | Mario Landi | Director |
| Sound | Armando Trovajoli | Music |
| Writing | Pierre Kalfon | Storyboard |
| Writing | Sergio Amidei | Storyboard |
| Writing | Mario Landi | Storyboard |
| Editing | Luciano Anconetani | Editor |
| Writing | Georges Simenon | Story |
