Karel Hurský

Petr Rynes (Svatopluk Matyás) is celebrating his forty-fifth birthday in the company of his friends. He is happy with his wife, and his abilities at work have been rewarded with the medal For Outstanding Work. But a few short seconds are enough to change his life when he makes the ill-judged decision to take his car to bring a friend's wife to the celebration, and hits a pedestrian on the way. He has of course been drinking at the party and is consequently sentenced to sixteen months in prison. Being in jail is not an easy thing for a honorable communist. He soon gets into conflict with several violent inmates, who think they can break his spirit by violence.

Sixth-grade pupil Katka daydreams during a math class about being Snow White and being freed by a prince who looks very much like Dzery from the eighth grade. Katka, her girl friends Lenka and Martina, and her fellow-pupils Franta, Joska and freckled Vrabcák, have spent five years going to the same little one-class school in their home mountain village of Pastvina. Their kind teacher Smetácek was very understanding about their games and fantasies, but he didn't teach them much about arithmetic. They are now laughed at for their ignorance by the strict Bidlo, their new teacher at the near-by little town. As he does every year, Smetácek is preparing a theatre performance with the local children. Katka suggests the fairytale about Snow White

Detective Lieutenant Boruvka (Lubomír Lipský) is called to the State Scientific Library to investigate the loss of a precious manuscript, the Infernal Psalter of the Occult Sciences by Master Peregrinus from the eleventh century, written in a secret script which has only recently been deciphered by senior lecturer Zajíc (Josef Chvalina). Chaos is reigning in the labyrinth of passages and halls of the former monastery where the library is housed. In order to save space the director of the library has introduced a peculiar system. The books are arranged in the bookcases according to height and six girls dressed in black, the library assistants, are quite happy to cut volumes down to size in case of need. Boruvka refuses the case, since he is specialist in murders. He has to return to the investigation, however, when senior lecturer Zajíc disappears.

More than twenty years after the Second World War, a mining engineer named Fischer is revealed as a former member of the Gestapo, Karel Kraus. He is sentenced for murder to eight years in prison and now works with other prisoners on the renovation of the Convent of St Agnes of Bohemia in Prague. Then a car with a foreign registration begins to park regularly close to the construction site. Its crew, a man and a woman, contact the construction foreman, who probably would not reject a bribe offer to perform some service. The prisoner Bicík is appointed to work with Kraus; Bicík gives him a message from Kraus' brother Bert, who lives abroad, that he wants to help him escape.