A group of children is trying to solve a mystery related to the diamonds smuggling.

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Main Cast: Michael Hofbauer, Boris Kubíček, Pavlína Mourková, František Kokejl, Karel Koloušek, Jan Faltýnek, Miroslav Zounar, Vladimír Ptáček, Jiří Pleskot, Vlastimil Čaněk

Director: Jiří Hanibal

Writers: Venuše A. Sekyrová, Jiří Hanibal

Editor: Zdeněk Stehlík

Cinematographer: Antonín Holub

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