A city neighborhood is frightened by a strangler and a voyeur. The police detectives, headed by Léopold Latour, are not very efficient in their investigations, though detective Édouard Lambert does a little sleuthing on his own.

• Les Productions le Loup Blanc
• Marie Tifo
• Jean-Marie Lemieux
• Pierre Curzi
• Raymond Bouchard
• Denise Proulx
• Pierrette Robitaille
• Rémy Girard
• Gaston Lepage