Left alone after her mother runs off with another man and her father kills himself, Elena attempts to make a new life for herself in a new city. Believing he's a friend, Elena goes to dinner with "Pretty Boy" Lucio, but he drugs her champagne and sells her to Rosaura, who runs a brothel out of her nightclub. Elena becomes a sensation as a dancer, but all the while she nurtures plans of revenge against those who have conspired against her.

The story—in which an American heiress on holiday in South America falls in love with an Argentine horse breeder against the wishes of their families—takes a backseat to the spectacular location shooting and parade of extravagant musical numbers, which include the larger-than-life Carmen Miranda singing the hit “South American Way” and a showstopping dance routine by the always amazing Nicholas Brothers.

A man is looking for a radio singer named "Dulcineia." For this, he goes through the biggest hassles and problems. The plot, in fact, is an excuse for the exhibition of the musical numbers of the greatest Brazilian Radio artists.