Countryman J.K. gets annoyed and quits his job on a farm when his boss sends his pet cow to a slaughterhouse in town. In search of the animal, J.K. goes to the city and, there, is harassed by several single women.

In the interior of Brazil, a farmer is responsible for the education of the daughter of one of his settlers. Years later, the girl returns from school with a nun and the farmer does everything to prevent her from know her parents.

For three days at the Copacabana Palace in Rio de Janeiro, amorous cross-fertilizations are intertwined with petty tricks against the backdrop of the famous carnival festivities. Three (sympathetic) accomplices are beaten to a punch in the hotel vault; three charming stewardesses are looking for entertainment, but their three Carioca host, musicians Tom Jobim, Luiz Bonfá, and João Gilberto, are married; a man, separated from his wife, wants to catch her in the act of adultery.