Ordinary man making his dirty actions in the small town and his coming to the right side.

A stout middle-aged physician whose marriage has come apart establishes a practice in a small town. Gradually he's drawn into the lives of his patients—a childless couple, a pregnant girl with a stern mother, the son of a duck farmer—and each relationship reveals a bit more about him and the idyllic but insular community.

Eleven-year old Mísa has the temperament of a proper boy and endless problems with the grown-ups. It is no wonder that he longs to become an adult without further delay. Mísa keeps house together with his father and has various duties. After a failed attempt at dish-washing he goes off to the research institute where his father is working on an important invention. He is trying to produce a substance that would make poultry and other animals bigger and thus help the struggle against famine in the world, but so far he has only managed to produce a shrinking substance. After his father leaves the laboratory, Mísa mixes up different ingredients and makes the growth substance. He drinks it and instantly becomes an adult. His father, conversely, turns into a toddler after drinking the shrinking substance with his beer by mistake.

Miroslav Hornicek is a deluded young man who is convinced he is Faust incarnate. This turn of mind leads to some ludicrous situations, such as when he believes a woman is really a cat. Before he can be rounded up and interned wherever they keep people with this type of a problem, love enters his life and the clouds that obscured his vision begin to dissipate.

Sarcastic comedy about the Czechoslovakia of the seventies. A young gynaecologist can't figure out whether to get serious with a young nurse or to stay casual with his married lover. Things get complicated when both women don't want to play his game anymore.