A West German concern is conducting secret negotiations on the production of an atomic bomb with an interested state. The son of the head of the concern, realizing the monstrosity and scale of his father's activities, interrupts the negotiations and returns home with the intention to publicize his father's activities.

Vsevolod Safonov
as Vladimirov - Soviet Journalist

Donatas Banionis
as Ferdinand Luce - Left-Wing Journalist

Pavel Pankov
as Berg - Prosecutor

Nikolai Gritsenko
as Friedrich Dornbrock - Head of the Concern

Juozas Budraitis
as Hans Dornbrock - Son of Friedrich Dornbrock

Igor Ledogorov
as Bauer - Chairman of the Board of Directors of the Concern

Einari Koppel
as Hanse Krone - Political Columnist for the Magazine «Extra One»

Evgeniy Evstigneev
as Deagon - American Millionaire

Chun Seb Pak
as Джозеф Лим - генеральный директор концерна

Eve Kivi
as Eugenie Schornbach - Wife of the Minister of Justice