Januário is a con man who, with the help of his equally con-artist friends, stays at the luxurious Hotel Palácio, posing as a rich cocoa farmer in order to rob and deceive tourists. Ananásia is a widow who also becomes a guest at the same hotel, with almost the same plan: to pretend to be a millionaire in order to marry some wealthy "old man". Januário and Ananásia immediately begin dating. However, their lies about their wealth make them targets of international jewel thieves who were among the guests.
In the Rio de Janeiro Central Station, the infamous pickpocket Mão Leve meets Ernestina—a Northeastern girl looking for a job—with whom he falls in love. Willing to conquer her, the thief decides to abandon his life of crime, but soon finds out it won't be easy.
The boss of Gilberto, an exemplary employee, wants to marry him with his daughter, Elisabeth. But her cousin, an unattractive girl, appears to meet him. Gilberto, who leads a hectic life, knows Betty, independent girl by whom one falls in love. In the end, she discovers that she is the boss's daughter.