The director of films for kids called Bonzurka (Iva Janzurová) is scouting together with her loyal assistants Drahuska (Dagmar Havlová) and Honza (Jirí Lábus) actors for her new film The Knee. Children for this film shall not be afraid and shy and they must have talent for acting. Thus the scouting is quite difficult. The most difficult is to find the main part which lost her hair after a serious illness and she has to spent the whole holiday in the countryside with a bald head resembling a knee. Although the visagist does his best an artificial baldness does not solve anything. From the selected little girls only the self-assertive Rosemary has the guts to let her long hair cut and shave off her head.