Kája Berka meets his very inventive great-grandfather thanks to nightgown. Kája gets to his buried plans of inventions, but before he lets them have patented they are stolen by a greedy engineer Křeček.
Július Satinský | Ing. Karel Křeček | |
Jana Švandová | Křečková | |
Marek Brodský | Radim Berka | |
Miroslav Vladyka | Prof. Berka | |
Jiří Racek | Aleš Chvojka |
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