A few hours before the official visit of the communist party representative, the management of the visited factory learns about it. Everything must be prepared to show the guest how well the place is being managed.
A wealthy German family is divided by the immorality of Nazi Germany, circa 1944. Former professional colleague, Joachim Peters, escapes from a Nazi concentration camp, and seeks refuge with his friends, the Sonnenbruchs. Torn between their duty as German citizens, and their greater humanitarian sensibilities, the family is divided in how to deal with Joachim's presence.
Police captain Wójcik conducts an investigation into the murder of a cashier from a state-owned enterprise. Despite seemingly numerous leads, the investigation gets stuck in a dead end – the victim had no enemies and nothing was stolen. Despite closing the case Wójcik feels that the key to solving the mystery is the murdered cashier and his past. Exploring this plot, he discovers a full-fledged spy affair, however, trying to catch the real murderer, he’ll have to risk his life, health and career.