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Scent of Mystery is a 1960 American mystery film directed by Jack Cardiff and starring Denholm Elliot and Peter Lorre. It was the first film to use the Smell-O-Vision system to release odors at points in the film's plot, and the first film in which aromas were integral to the story, providing important details to the audience. It was produced by Mike Todd Jr., who, in conjunction with his father Mike Todd, had produced such spectacles as This Is Cinerama (1952) and Around the World in Eighty Days (1956).