Henri-Georges Clouzot's cool, clammy, twisty 1955 thriller Diabolique is an almost perfect movie about a very nearly perfect murder, a film in which the artist's methods and the killers' are ideally matched, equal in cunning and in ruthlessness. The screenplay, adapted by Clouzot and three other writers from a novel by the crack French crime-fiction team of Pierre Boileau and Thomas Narcejac, is a fantastically elaborate piece of contrivance, but the scrupulous realism of the direction makes the unnatural tale somehow feel entirely likely.

What you discover on your own is always more exciting than what someone else discovers for you - it's like the marriage between romantic love and an arranged marriage.

Henri-Georges Clouzot's cool, clammy, twisty 1955 thriller Diabolique is an almost perfect movie about a very nearly perfect murder, a film in which the artist's methods and the killers' are ideally matched, equal in cunning and in ruthlessness. The screenplay, adapted by Clouzot and three other writers from a novel by the crack French crime-fiction team of Pierre Boileau and Thomas Narcejac, is a fantastically elaborate piece of contrivance, but the scrupulous realism of the direction makes the unnatural tale somehow feel entirely likely.