A village shop owner is convinced by his children to move to Prague, where they say he'll be able to enjoy a fine retirement in a modern furnished apartment. Bored by life in Prague with nothing to do, the old man takes to helping a young widow in her stationery shop.
Rudolf Bartoš, the owner of a farm, quarry and factory, is extremely rich, however, he is unapproachable and irritable, and the dread of his employees. One day he falls down a steep slope by a river and hurts himself. The quarryman Fábera finds him groaning in pain and takes him to his cottage.
The orphan Eliška Irovská, nicknamed Líza, arrives in her native village of Ptačice. As an orphan she is housed in the local poorhouse and has to go out begging. Her guardian Petr Tumlíř, however, sees that she is competent enough to go to school.
A Milk-Cannery baron, Jakub Simonides, is broken by the Canned Milk-Trust and, in his wanderings with a worker, Filip Kornet, he discovers he still owns a half-finished apartment-house. They rally the workers and complete the building for use as a collectivist dairy. The cooperative flourishes and after a chase/pursuit with the police, pratfalls, slapstick and various crashes, the workers buy out the Milk-Trust.