A couple's murderous plot goes horribly awry in this French noir classic that later inspired the Alfred Hitchcock masterpiece Psycho Every Saturday evening, travelling salesman Ferdinand Ravinel returns to his wife, Mireille, who waits patiently for him at home. But Ferdinand has another lover, Lucienne--an ambitious doctor--and together the adulterers have devised a murderous plan. Drugging Mireille, the pair drown her...