Synopsis
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.
Cast

Basil Rathbone
Sherlock Holmes

Nigel Bruce
Doctor Watson

Evelyn Ankers
Kitty

Reginald Denny
Sir Evan Barham

Thomas Gomez
R.F. Meade

Henry Daniell
Sir Anthony Lloyd

Montagu Love
General Jerome Lawford

Olaf Hytten
Admiral Sir John Fabian Prentiss

Leyland Hodgson
Captain Roland Shore

Mary Gordon
Mrs. Hudson

Hillary Brooke
Jill Grandis

Harry Cording
Camberwell

Herbert Evans
Smithson - Barham's Butler (uncredited)

Fred Graham
Meade's Henchman (uncredited)

Gavin Muir
BBC Radio Announcer (voice) (uncredited)

Edgar Barrier
Voice of Terror (voice) (uncredited)
Bobby Hale
Bar Patron (uncredited)
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