Thomas Lieven is a German secret agent trying to leave that profession, to live a peaceful life. Adventure is too strong an appeal, he starts working again, and soon it's difficult to say if he is doing his job, or turned out as double agent for England, France or even communist Russia! To save his skin, he'll do - almost - anything, to anyone...
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| Directing | Géza von Radványi | Director |
| Writing | Johannes Mario Simmel | Novel |
| Writing | Henri Jeanson | Writer |
| Writing | Jean Ferry | Writer |
| Writing | Paul Andréota | Writer |
| Directing | Helmut Käutner | Director |
| Directing | Georg Marischka | Director |
| Production | Artur Brauner | Producer |
| Production | Georg M. Reuther | Executive Producer |
| Sound | Rolf A. Wilhelm | Original Music Composer |
| Camera | Friedl Behn-Grund | Director of Photography |
| Editing | Walter Wischniewsky | Editor |
| Art | Hertha Hareiter | Production Design |
| Art | Otto Pischinger | Production Design |
| Costume & Make-Up | Claudia Hahne-Herberg | Costume Design |
