In the era of normalization, even seemingly buried agent stories came back. This one takes place in the immediate post-war years and tells the story of the discovery of a spy network that an American diplomat was spinning on Czech territory. He was unsuccessful: first, a close associate, who was proven to have collaborated with the Nazis during the war, committed suicide, followed by the intervention of the vigilant Security Service. However, the fleeing Americans were joined "in return" by a Czechoslovak agent... This naive adventure story could hardly be taken seriously. The book, which served as the basis for the film, was written based on actual events that took place in 1948.

An escaped inmate of a mental home, Franz Moose, has been found shot dead in the forest. In the course of their investigation, District Commander Havel (Jirí Adamíra) and Lieutenant Mares (Miroslav Zounar) slowly work their way through the complicated case. Havel learns from the employees' testimonies that Moose was facing trial for war crimes before he was finally sent to the hospital. There he shared his room with Kozdera, spent his time painting, and made several attempts to escape. Havel wants to interrogate Kozdera but the unfortunate patient gets killed before he can do so.

第一次世界大战的俄国前线。下士阿德尔伯特是个狂热的战士，执行上级命令不加思考，由于一直作战勇猛，他被将军授予了只有军官才能获得的青铜“军功勋章”