The main characters of the film, inspired by director Soukup's own experiences at the Škodovka factory in Pilsen, are two inseparable friends who, after graduating from the industrial school, join a large engineering plant. Here they spend their first year of post-graduate life, where their vague ideas and ideals clash with their completely different life experience. In addition to their conflicting work experiences, Ondřej and Cyril have to deal with their own personal problems. They have big plans for the future, but their dreams are unexpectedly interrupted by a tragic event.

A British citizen by the name of George Reiner (Jirí Sovák) arrives at Prague airport. He was once a Czech safe-breaker, and has now returned home after thirty years to steal twenty-dollar gold coins still kept in the safe at a private villa in Pilsen whose owner fled to the West.

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.