226 mins | Crime, Action, War | April 24, 1945
226 mins | Crime, Action, War | April 24, 1945
| Producers | Universal Pictures |
| Original title | The Master Key |
| Directors | Lewis D. Collins, Ray Taylor |
| Writers | Joseph O'Donnell, Ande Lamb, Dwight V. Babcock, Jack Natteford, George H. Plympton |
as Agent Tom Brant
as Janet Lowe
as Jack Ryan
as Gerhard Doenitz / Garret Donahue
as Prof. Elwood Henderson
as Dorothy Newton
as Aggie
as Herman
as Police Chief Michael J. O'Brien
as Arnold Hoffman
as Migsy
as Dan
as Spike
as Walter Stark