The Master Key
- वर्ष: 1945
- देश: United States of America
- शैली: Action, War, Crime
- स्टुडिओ: Universal Pictures
- कीवर्ड: movie serial
- संचालक: Ray Taylor, Lewis D. Collins
- कास्ट: Milburn Stone, Jan Wiley, Dennis Moore, Addison Richards, Byron Foulger, Maris Wrixon
