The bank officer Bedrich Hroch is sent by the bank director to the zoo, which asked an allocation of one and half kg of gold for a gold tooth for a hippo. During the check up of the hippo's teeth Bedrich is swallowed by the hippo. The man does not die in the hippo's guts and he chats quite happily with his frightened wife Dása. Journalist Pip Karen, his friend is also present to the dialogue and he has immediately an idea how to use this special situation. He tells to the new minister Borovec and his opponent professor Fibinger that there is a hippo in the zoo which can speak. He also tells them how to use this situation for a political propaganda.
Oldo Hlaváček
as Bedřich Hroch
Helga Čočková
as Dáša
Svatopluk Matyáš
as Pip Karen
Helena Blehárová
as Soňa
Miroslav Homola
as ministr Borovec
Zdena Hadrbolcová
as Plašilová
Eduard Dubský
as prof. Fibinger
Jiří Lír
as ošetřovatel
Slávka Budínová
as Majka
Josef Větrovec
as ředitel zoo
Jiří Holý
as
Oldřich Velen
as
