Speaking of Murder

Louis Bertain, a respectable garage owner by day, is the head of a band of notorious crooks by night. When a hold-up goes badly wrong, Bertain’s younger brother Pierre is suspected of having sold them out to the police. He was, after all, recently picked up by the police and then released after questioning. When he is finally caught by Commissaire Pluvier, Louis discovers that he has been betrayed not by Pierre but by another member of his gang… —Filmsdefrance.com