The musical version of the successful play of Oldřich Daněk was transferred to the screen by director Jiří Sequens in 1986. It takes place in the 14th century in Bohemia during the reign of King Wenceslas IV. Heroes of the story are three mercenaries who always fight on the wrong side and are always beaten, but they are moral winners of all conflicts and skirmishes.

About two princesses, twins, indistinguishable from each other. Except that the "beautiful" one doesn't care about her education and the "smart" one doesn't care about her looks. Only the two sisters' efforts to get the same prince as their husband lead them to realize where they were wrong. They then know forever how little beauty means without wisdom and wisdom that despises beauty.