Three short story omnibus. The main hero and connecting link is Lieutenant Boruvka, created by Lubomír Lipsky. He deals with the murder case between climbers, the death of the dancer in the music theater and the strange disappearance of the mathematics professor.

From a scientific enterprise, a large sum of money has been stolen, in addition, research protocols have been photographed...

Tram driver Marie has far too much to do after her shift is over. But she likes to do it all since she loves her husband Václav sincerely. One day she spots him on the Lesser Town Square in Prague, kissing an attractive blonde good-bye. It seems to Marie that her small comfortable world has collapsed and she walks out of the tram in tears. But her sadness does not last long. She wipes off the tears and begins to act. She withdraws all the money from their savings books and buys off all the latest models from the Fashion Works. The visit to the beauty salon then completes her transformation into a lady.

Working on the hops fields gathering hops for beer, Filip catches a glimpse of fellow worker/comrade Hanka and falls for her. Trying to keep their love secret from the field owners,fellow worker Honza becomes jealous of Filip having a romance with Hanka, which leads to Honza deciding that he will feed the hop field owners Hanka and Filip's secret romantic hops.