England, at the start of World War Two. Mysterious wireless broadcasts, apparently from Nazi Germany are heard over the BBC. They warn of acts of terror in England, just before they take place. Baffled, the Defense Committee call in Sherlock Holmes.
Sherlock Holmes and the Voice of Terror is a 1942 American mystery thriller film based on Sir Arthur Conan Doyle's Sherlock Holmes detective stories. The film combines elements of Doyle's short story "His Last Bow", to which it is credited as an adaptation, and the real-life activities of Lord Haw-Haw.
