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.

• Les Films Number One
• Franco Riganti
• Gino Cervi
• Lila Kedrova
• Raymond Pellegrin
• Alfred Adam
• Christian Barbier
• Riccardo Garrone
• Claudio Biava
• Enzo Cerusico