Les Diaboliques

Henri-Georges Clouzot's classic double-bluff thriller stars his real wife Véra Clouzot and Simone Signoret as the wife and mistress of bullying schoolmaster Paul Meurisse. Together, they devise a foolproof murder plan that will make it look like an accident. But then his body disappears... Charles Vanel, as the investigating Inspector Fichet, is the original Columbo in technique and character while the denouement is so unexpected that, like Psycho, audiences were sworn to secrecy at the end.