In the midst of World War II, Sherlock Holmes rescues the Swiss inventor of a new bomb-sight from the Gestapo and brings him to England, where he quickly falls into the clutches of the evil Professor Moriarty.

• Universal Pictures
• Basil Rathbone
• Nigel Bruce
• Lionel Atwill
• William Post Jr.
• Kaaren Verne
• Dennis Hoey
• Holmes Herbert
• Mary Gordon