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Synopsis
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
Original Title
The Master Key
Director
Lewis D. Collins
Ray Taylor
Milburn Stone
Agent Tom Brant
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Jan Wiley
Janet Lowe
Dennis Moore
Jack Ryan
Addison Richards
Gerhard Doenitz / Garret Donahue
Byron Foulger
Prof. Elwood Henderson
Maris Wrixon
Dorothy Newton
Sarah Padden
Aggie
George Lynn
Herman
Russell Hicks
Police Chief Michael J. O'Brien
Roland Varno
Arnold Hoffman
Lash LaRue
Migsy
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Jerry Shane
Dan
