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.
The harsh reality of a home for abandoned children blends with episodes of youthful fantasy and slapstick comedy in this story of an orphan girl. Lucy's fondest wish is to find new parents and leave an orphanage. She befriends a man who can create doors from paint. He gives her a stuffed dog that magically comes alive when placed on the ground, and he and his wife end up adopting the little girl. After finding parents of her own, Lucy sets out through fantasy to find parents for her orphan friends. All of the people Lucy meet during her remarkable make believe wanderings end up taking children home.