Dr. Grunert, electronics specialist from the GDR, gets a visit from an old acquaintance from war times. Both worked back then on navy torpedoes. His former colleague wants to poach Grunert – to Schenectady, the headquarters of the largest American electronics company. With alleged war crimes, he tries to blackmail Grunert, but quickly it becomes clear where the true criminals are sitting: In influential positions of the American industry. Grunert underestimates the scrupulousness of his opponent and invites him to a remotely located country home to clarify things. The Ministry for State Security is already on the trail of the matter and saves the engineer from a dangerous solo action.
| Directing | Richard Groschopp | Director |
| Editing | Helga Emmrich | Editor |
| Sound | Wolfgang Pietsch | Music |
| Camera | Hans-Jürgen Kruse | Director of Photography |
| Writing | Harry Thürk | Scenario Writer |
| Writing | Richard Groschopp | Screenplay |
| Crew | Lothar Höricke | Dramaturgy |
| Art | Werner Pieske | Production Design |
| Art | Werner Hensler | Construction Manager |
| Costume & Make-Up | Helga Scherff | Costumer |
| Costume & Make-Up | Margarete Walther | Makeup Artist |
| Costume & Make-Up | Jürgen Holzapfel | Makeup Artist |
| Sound | Werner Dibowski | Sound |
| Camera | Ingo Raatzke | Assistant Camera |
| Camera | Hein Wenzel | Assistant Camera |
| Directing | Sigrid Meyer | Assistant Director |
| Production | Dieter Krüger | Unit Manager |
| Production | Oscar Ludmann | Production Manager |