Four women are murdered, each knifed and, despite torn garments, remain virtuous. As famed police inspector Jules Maigret pieces the clues together, he comes to realise that for the elusive man that he suspects to be unmasked, he has to set a trap.

• Jolly Film
• Intermondia Films
• Jean Gabin
• Annie Girardot
• Olivier Hussenot
• Jeanne Boitel
• Lucienne Bogaert
• Jean Debucourt
• Paulette Dubost
• Lino Ventura