The owner of a clothing store, Mr. Načeradec, spends most of his free time in a café, where he plays chess with the owner of a rival store, Mr. Dundr, over mineral water. Načeradec's daughter Edith, coincidentally, starts practicing law at the same time as her boyfriend, Dundr's son. Mr. Načeradec often fills in for Mr. Findajs at the card company, who is currently dedicating himself to the wife of another player, Mr. Tachecí, the owner of a detective agency. Načeradec keeps his winnings, Findajs has to pay for the money he loses. One day, Mr. Načeradec is so unlucky in the game that he and Mr. Dundr get into a heated argument that ends up in court. Both men are represented by their children, who are rather amused by the situation.
Hugo Haas
as Richard Načeradec
Jožka Vanerová
as Hedvika
Hana Vítová
as Edith
Jaroslav Vojta
as Dundr
Roman Roda-Růžička
as JUDr. Dundr
Emanuel Hříbal
as Kamil Tachecí
Marie Grossová
as Tachecí
Jan Sviták
as Fidejs
Theodor Pištěk
as MUDr. Bondy
Betty Kysilková
as služka
Stanislav Neumann
as učedník u Načeradce
František Hlavatý
as páter Boháč
