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.
| Actor | Role |
|---|---|
 Gino CerviCommissaire Maigret | Commissaire Maigret |
 Lila KedrovaRose | Rose |
 Raymond PellegrinFred Alfonsi | Fred Alfonsi |
 Alfred AdamIspettore Lognon | Ispettore Lognon |
 Christian BarbierIspettore Torrence | Ispettore Torrence |
 Riccardo GarroneLapointe | Lapointe |
 Claudio BiavaJanvier | Janvier |
 Enzo CerusicoAlbert | Albert |
 Armando BandiniSauterelle | Sauterelle |
 Mario FelicianiDirettore polizia | Direttore polizia |
 José GreciArlette | Arlette |
 Antonio BattistellaDr. Pasquier | Dr. Pasquier |
 Antonella Della PortaNot listed | Not listed |
 Tino BianchiNot listed | Not listed |
| GGianluigi CrescenziNot listed | Not listed |
 Giulio MaculaniNot listed | Not listed |
| RRenato LupiNot listed | Not listed |
| DDiego MichelottiNot listed | Not listed |
 Gabriella GiorgelliNot listed | Not listed |
 Donatella Della NoraNot listed | Not listed |
 Marisa TraversiNot listed | Not listed |
| EElena DemerikNot listed | Not listed |
| DDaniel OlliePhilippe | Philippe |