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.
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Verdict: Unknown
> John Rawlins (Director)
> Bernard B. Brown (Sound Director)
> Elwood Bredell (Director of Photography)
> Arthur Conan Doyle (Story)
> John Bright (Screenplay)
> Lynn Riggs (Screenplay)
