When Prince Vain got his shirt fixed, he proclaims that he had slain two lizards in front of the tailor's house - "two in one strike". When the tailor swats seven flies at once, he sows himself a banner saying "seven in one strike", and together with his bird he starts a journey into the world to pronounce his deed.
Germany in 1949: The residents of the Thuringian village Hunsdorf are still heavily influenced by archaic superstition and explain unusual events with preternatural powers. The same happens when pigs again and again disappear from different farmyards. The village residents firmly believe that witches are the reason for this mystery. Not even police detective Kühlemann who is sent to Hunsdorf is able to dissuade them from their superstition. Thus, the farmers think his investigation is aimless and they do not support him at all. With a lot of patience and well-made arguments he finally convinces little Peter that there are no witches. Next, Peter’s grandfather and teacher Marianne take Kühlemann’s side. With their support, the police detective eventually finds out the truth and is able to put a stop to the gang of crooks that had been stealing the pigs.
Biographical movie about Julius Robert Mayer (1814-1878), a surgeon and town doctor in Heilbronn, who studied heat for many years and was the first to correctly formulate the basic principles of the theory of mechanical heat and the principle of conservation of energy. Competing Prussian scientists laugh at him, and his life is full of misunderstandings and persecution. The film tells of his fate and his long and futile struggle for recognition of the results of his scientific work.
