A frustrated Frankfurt innkeeper is recruited as an agent for the "Gehlen Organization" and after a short training period, during which he is familiarized with sophisticated espionage methods, he takes his first steps as a spy. When the really big assignment comes his way, he loses contact with his superiors.
| Actor | Role |
|---|---|
 Klaus HermErwin Kienruss | Erwin Kienruss |
 Cordula TrantowLilly Kienruss | Lilly Kienruss |
 Hans Christian BlechFreddy Starke | Freddy Starke |
 Helga FeddersenNot listed | Not listed |
 Ilse ZielstorffNot listed | Not listed |
 Uwe DallmeierNot listed | Not listed |
| FFranz MosthavNot listed | Not listed |
 Karl ObermayrNot listed | Not listed |
| GGötz Olaf RauschNot listed | Not listed |
 Rolf SchimpfNot listed | Not listed |
| PPeter SchmitzNot listed | Not listed |
| FFritz StraßnerNot listed | Not listed |