"A lurid mad-scientist drama—scripted by Boileau and Narcejac, also of Diabolique and Vertigo, and filmed by Georges Franju as a mix of surgical surrealism, hyper-graphic horror, raincoated French policier and Cocteau-ish magical romance. Edith Scob drifts through corridors in a blank white mask and a nightgown, and Alida Valli stalks her prey in a Citroën 2CV, accompanied by Maurice Jarre’s shuddery score."
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