The DVD for this intriguing French movie is VERY expensive in the catalogs, but Simone Signoret ("Room at the Top" and ("Guy de Maupassant") is mesmerizing as the mistress of a school administrator who is married to an ailing wealthy woman, played by Vera Clouzot ("Les Espions").
This little gem features a scruffy detective who might have provided the blueprint for American television's "Columbo." In European movies at the time (1955), people really COULD get away with murder...or could they?