Les Diaboliques is a 1955 French psychological thriller directed by Henri-Georges Clouzot. The plot involves a cruel principal of a boys' boarding school and his meek wife, Christina, along with his mistress, Nicole. Together, the two women hatch a plan to murder the oppressive principal and make it look like an accident. However, after carrying out the deed, his body mysteriously disappears, leading to a series of eerie occurrences and growing suspicions. The film masterfully builds tension and suspense, culminating in a twist ending that has left a lasting impact on the thriller genre. It stars Simone Signoret, Paul Meurisse, Vera Clouzot, and Charles Vanel. The film is an undeniable classic of the thriller genre that is up there with the best work of Alfred Hitchcock.
(Summary by FreeGreatMovies.com)