Les Diaboliques (Henri-Georges Clouzot, France, 1955)

diaboliques
An icily brilliant suspense thriller... Satisfying, elegant and nasty.
— Peter Bradshaw, The Guardian

The wife of a cruel headmaster and his mistress conspire to kill him, but after the murder is committed, his body disappears, and strange events begin to plague the two women. An acknowledged influence on Psycho it’s easy to see why this was one of Alfred Hitchcock’s all-time favourite films.