An occupation drama about a group of Czech scientists who, in a remote factory, investigate how to produce the vital penicillin as easily as possible - but for a long time they have been unable to find the only right mould to use as a base.

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Main Cast: Karel Meister, Vlastimil Hašek, Karel Vochoč, Kamil Bešťák, Vladimír Čech, Zdena Bittlová, Nora Houfová, Jana Andresíková, Václav Neužil st., Miloš Vavruška

Director: Jiří Lehovec

Writers: Jiří Lehovec, Jiří Cirkl

Editor: Jaromír Janáček

Cinematographers: Zdeněk Šibrava, Ivan Karel, Antonín Stránský, Oldřich Žák, Jaromír Holpuch

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