Maigret Sets a Trap
Maigret tend un piège (original)
Four women were murdered, each was knifed and, though they had their clothes torn, they weren't molested. As the famed police inspector Jules Maigret pieces the clues together, he comes to realize that for the elusive man that he suspects to be unmasked, he has to set him a trap.
Starring Jean Gabin, Annie Girardot, Olivier Hussenot, Jeanne Boitel, Lucienne Bogaert, Jean Debucourt, Paulette Dubost, Lino Ventura, Jean Desailly
Watch "Maigret Sets a Trap" on Kanopy released in 1958. It's a crime and drama movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie.