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.
A man boards on a tram together with a naked boy. Somebody has stolen the boy's clothes when he was out bathing, leaving him with not even change for the tram. The man has taken care of him and is taking him home. At first nobody notices them but as soon as the people realize they are seeing something out of the ordinary they begin to react to the situation. Some are content with the simple explanation as to why the boy is naked. Others are agitated, for they see the whole situation as something unseemly. An ordinary incident, which might have been passed over in silence, results in a heated argument that turns into a fight. More and more people join in the fight until the police are forced to intervene.
