In a séance, Menezes' great-great-grandfather is brought back to life in present day (1936), over a century after his death at age 26. A free-spirited womanizer, he starts causing all sorts of trouble for the wealthy, respectable family of his descendants.
Three couples, two already living in Rio; and the third, with 'the one who hates carnival', coming to visit an aunt. One of the women bets that all husbands are unfaithful. They send invitations to their husbands to the carnival ball. They find a pretext to be able to attend. They, in turn, go in disguise, just like the maid. Hence the confusion at the ball, each one dating the other's wife.
