An image and music collage - a cinema concert - guided by a young sound engineer David, for whom the exhibition on E. F. Burian is an incentive to take more interest in this avant-garde artist. The film interweaves two strands - documentary and factual, drawing on contemporary material and archival images - and fictional with the story of David the sound engineer.

Summer 1968: The crisis is reaching its peak. The director of the Prague taxi service, Mudroch, rejects the drivers' absurd demands for a pay increase. The taxi drivers decide to go on strike and seek support against Murdoch from trade unionists and enemies of the regime. The director is convinced that honest communists like him cannot be defeated. However, hateful vandals damage the brakes in his car...

The production was based on Ivan Olbracht's novel Nikola Šuhaj loupežník (Nikola Šuhaj the Robber). The music draws on Petr Ulrych's famous LP, which was released in 1974, won the Bílá vrána (White Crow) award from Mladý svět magazine, and subsequently inspired a production at Prague's Divadlo Ateliér theater. Among other things, the band Javory was formed on this occasion. The expanded band Javory also plays and sings in the 2002 production of the Brno City Theater, and additional musical numbers were created for it. Of the 25 numbers, more than half are new to the performance. Petr Ulrych won the A. Radok Award for his music. Director and author of the theatrical adaptation Stanislav Moša incorporated film footage into the production, which works wonderfully as a reminiscence of natural beauty. Also worth mentioning is the impressive choreography of the police and bandit choirs and the excellent acting and singing performances, led by Petr Štěpán in the lead role.

At the turn of the 10th and 11th centuries Boleslav's kingdom fell apart in the fratricidal war between the Přemyslovci and the other clans the main profiteer of this being the German emperor. At that time it seemed as if the Czech state and the lineage of its princes was awaiting its end..." It is with these words that the tale of this film begins, whose narrative is based upon the the play by František Hrubín of the same name.