Based on Agatha Christie's "The Secret Adversary," a young couple looking for adventure become involved in the mystery of a missing woman and an espionage ring.
| Writing | Jane Bess | Screenplay |
| Directing | Fred Sauer | Director |
| Writing | Agatha Christie | Novel |
| Art | Leopold Blonder | Art Direction |
| Art | Franz Schroedter | Art Direction |
| Camera | A.O. Weitzenberg | Director of Photography |
