It is 1905. The police director gets Jindrich Legenda (Eduard Cupák) shadowed as, yet Legenda had served his sentence for a burglary, the jewels have not been found. Russian revolution encouraged also Czech workers to fight for their rights. Radical anarchists are followed by Legenda's friend Karel Wohryzek (Vladimír Mensík) who was forced to collaborate with the police as he was convicted of pornography distribution.
Shortish forty-year old Ludvík Podzimek, lute and flute player in a Prague orchestra, is far from being an attractive man. He is nevertheless generally considered a great 'Don Juan'. Women take up with him out of a certain motherly compassion and Ludvík's tender heart does not allow him to split with any of them. His lovers thus accumulate and cause him numerous troubles.
A young man tries to enter the building of the Mammoth Cybernetic Supermachines Research Institute again and again but each time the doorkeeper spots him and kicks him out. The youth finally arrives with all his friends and a huge live bear from the circus where he works as an accountant. He is finally allowed in where he explains to the members of the directorate that he wants to work at the Institute, since he graduated in cybernetics and, besides, he has invented a machine for forecasting time of death. When the conniving research manager learns that their director is going to die in two days, he hopes to rise to his position.