During WWII several murders occur at a convalescent home where Dr. Watson has volunteered his services. He summons Holmes for help and the master detective proceeds to solve the crime from a long list of suspects including the owners of the home, the staff and the patients recovering there.

• Universal Pictures
• Basil Rathbone
• Nigel Bruce
• Dennis Hoey
• Hillary Brooke
• Mary Gordon
• Halliwell Hobbes
• Milburn Stone
• Minna Phillips