The wife and mistress of a loathed school principal plan to murder him with what they believe is the perfect alibi.
- Runtime: 117 min
- Released: 21 Nov 1955
- Genre:Crime, Drama, Horror
- Starring: Simone Signoret, Véra Clouzot, Paul Meurisse
- Writer: Pierre Boileau, Thomas Narcejac, Henri-Georges Clouzot
- Director: Henri-Georges Clouzot
- Available countries: France