In Rio de Janeiro, the renowned doctor and professor François Miranda brings his wife Juliana to the airport to travel with her cousin to Switzerland. Out of the blue, youth Alberto Lobo introduces himself to François explaining that he is the son of his old friend Renato. Womanizer Lobo had had problems in São Paulo and his father sent him to live in Rio de Janeiro. Lobo organizes a party with booze and women in François’s apartment and the neighbors gossip about the event. When Lobo meets the gorgeous aspirant actress Claudia on the beach, he lures her and tells her he is a prominent theater producer from São Paulo and invites the beautiful girl for a test with the director in François’s apartment. However his friend is reluctant to borrow the apartment and Lobo plots a scheme with his maid Dorilana that has a crush on François. However, when Claudia’s grandmother and François’s client and neighbor Ms. Chiquinha finds that her granddaughter has been lured by Lobo but is in love with the liar, she uses her life experience to advise Claudia.