Double feature starring Basil Rathbone as detective Sherlock Holmes. In 'The Pearl of Death', before a master thief is caught he hides his take, the Borgia Pearls, inside the wet plaster of one of six busts of Napoleon. His sidekick 'The Creeper' is instructed to stalk and kill the owners of the busts, but Holmes intervenes and finds himself stalking 'The Creeper'. In 'The Woman in Green', a series of strange murders baffles the police and Holmes is called onto the scene. He discovers a blackmail ring that uses a female hypnotist to further their skulduggery.