 Everything is on the way for the annual performance of the Grandella s Store Theatre Group, "Os Grandelinhas", with the play "O Pai Tirano". That s when Chico Mega discovers that his beloved Tatão is turning her attention to another guy, Artur de Castro. When he tries to regain her love a series of mistakes between his personage on the play and his real life will lead to an unbelievable and much funny confusion with a great finale in the play s performance at stage.