A remake of Vávra's 1948 atomic age thriller Krakatit.

Attorney Horic is a specialist for cases connected with motoring. He approaches to his work unconventionally, he does not hesitate to search for evidence right in the terrain and he is willing to take various risks.

No Woman is allowed into Karlstejn Castle! Yet the enamoured Daniele Kolářová and the equally enamoured Jana Brejchová manage to spend one night in disguise in the Castle despite the strict royal ban.

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.