The Master Key
13 Chapters of Terrific Thrills!
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
- Year: 1945
- Country: United States of America
- Genre: Action, War, Crime
- Studio: Universal Pictures
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- Director: Lewis D. Collins, Ray Taylor
- Cast: Milburn Stone, Jan Wiley, Dennis Moore, Addison Richards, Byron Foulger, Maris Wrixon