František Stach

After the Battle of Lipany, the remnants of the Hussite troops concentrated under the leadership of Jan Roháč of Dubé at Sion Castle. However, he had no prospects of victory against the soldiers of the Lordship. Sion was conquered, Roháč of Dubé was captured and executed as a pest in Prague on September 9, 1437.

Antique dealer Kohout is not a bad person. However, he has an ideal: to be the unlimited master at home. Therefore, he does not see his wife's wishes, nor the fact that his daughter Helena has found a groom, that his other daughter has fallen in love, and that his son is a passionate swimmer. He would like to run their lives according to his old-fashioned ideas. However, Zdenka's suitor, engineer Bečvář, uses a trap to gain Kohout's favor. The antique dealer even offers him Zdenka's hand in marriage. In addition, Kohout's brother, a forester, enters the story, who comes to Prague for a visit. By coincidence, the two brothers switch roles and the family considers their father a dear uncle...