At a second‑rate boys’ boarding school outside Paris, the tyrannical Michel Delassalle(Paul Meurisse) rules through cruelty and humiliation. The school itself belongs to his wife, Christina (Véra Clouzot, the director’s wife), a frail, devout Catholic émigrée from Venezuela who teaches Spanish and suffers from a chronic heart condition. Michel mocks her illness, mistreats the students, and openly carries on an affair with Nicole Horner (Simone Signoret), another teacher he also abuses. Yet rather than hostility, Christina and Nicole share a wary, intimate bond—rooted in their mutual hatred of Michel and, as the film strongly suggests, something deeper.
Unable to endure Michel’s brutality any longer, Nicole devises a plan to murder him. Christina, terrified but desperate, eventually agrees. Luring Michel to Nicole’s apartment with the threat of divorce, Christina drugs him, and together the women drown him in a bathtub. They hide the body in a trunk, transport it back to the school, and dump it in the unused swimming pool, expecting it to surface and suggest an accident. But when the pool is drained, the corpse has vanished. From that moment on, the film becomes a masterclass in dread.
Co‑written and directed by Henri‑Georges Clouzot, Les Diaboliques (released in the U.S. as Diabolique) won Best Foreign Film from both the New York Film Critics Circle and the National Board of Review, and by late 1956 had become the highest‑grossing French film ever released in the United States. It is also one of the most successful queer films of all time: though coded, the emotional and psychological intimacy between Christina and Nicole is unmistakable.
Based on the 1952 novel The One Who Was No More by Pierre Boileau and Thomas Narcejac, the film famously slipped out of Alfred Hitchcock’s grasp—Clouzot optioned the rights just hours before Hitchcock tried to buy them. Ironically, the film helped inspire Psycho (1960); novelist Robert Bloch called Les Diaboliques his all‑time favorite horror film. And Hitchcock’s Vertigo (1958) would later be adapted from another Boileau‑Narcejac novel.
Les Diaboliques remains a landmark of psychological horror, celebrated for its atmosphere, its audacious twist ending (no spoilers here), and its enduring influence on the genre—and on queer cinema.
With Charles Vanel as the detective.
Cinematography: Armand Thirard.
Cinédis in Europe
UMPO (United Motion Picture Organization) in the US
