Engracadinha is a sexy teenager, with whom every man wants to get involved, except her cousin Silvio, the only man she loves. On Silvio's engagement day, she seduces him at the party and becomes pregnant. But her father, Dr. Arnaldo, tells her a horrible secret, saying that her child cannot be born. A tragedy ensues.
        After the funeral of her father Arnaldo (José Lewgoy), who committed suicide, Engracadinha (Lucélia Santos) confesses to the priest the motives. On the engagement party of her cousin Sílvio (Luiz Fernando Guimaraes) with Letícia (Nina de Pádua), Engracadinha seduces him in the library, and later she ends her engagement with Zózimo (Daniel Dantas) and lies to Letícia, telling that she is pregnant. Letícia decides to tell Arnaldo what happened, and he says that the child can not be born. He exposes dirty secrets to Engracadinha, and a tragedy is announced.
        "Engracadinha" is another adaptation of an erotic, amoral and tragic novel about the degradation of the family of Nelson Rodrigues, one of the best Brazilian dramaturge, to the cinema. The performances of Lucélia Santos, Luiz Fernando Guimaraes, Nina de Pádua and José Lewgoy are magnificent. The beautiful title song is sang by the Brazilian singer Zizi Possi.