The Master Key
- İl: 1945
- Ölkə: United States of America
- Janr: Action, War, Crime
- Studiya: Universal Pictures
- Açar söz: movie serial
- Direktor: Lewis D. Collins, Ray Taylor
- Oyuncu: Milburn Stone, Jan Wiley, Dennis Moore, Addison Richards, Byron Foulger, Maris Wrixon