(Un meurtre est un meurtre)
Murder mystery involving a man and his relationship with twin sisters.
Jean-Claude Brialy
Paul Kastner
Stéphane Audran
Marie Kastner / Anne
Robert Hossein
Jean Carouse
Michel Serrault
Le commissaire Plouvier / Superintendant
Catherine Spaak
Françoise
Claude Chabrol
Railway guard
