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.
Manfred Zetzsche
Dr. Grunert

Marita Böhme
Vera Lange

Oleg Mokshantsev
Alexei Karkasov
Zofia Słaboszowska
Irena

Helmut Schellhardt
Major Werner

Klaus Piontek
Leutnant Blank

Gert Gütschow
Bruce
Kurt Kachlicki
Van Swaart
Franz Viehmann
Kahlenberg
Ernst Heise
Clark
Erich Thiede
SS- Untersturmführer

Günter Schubert
Sieglinde Grunwald

Adolf Shestakov

Gennadi Chulkov