The plot reflects the figure of Pascual Contursi, tango poet. In love with a singer, he leaves his wife and son to go with her. Some time later, the singer leaves him and he composes the tango that gives the film its title.
When her boyfriends are tempted by attractive women who are only interested in their money, two friends decide to join forces to make them give up such love affairs.
A thief commits a robbery and is seen by a showgirl who becomes a witness to the crime. The man finds her and forces her to help him take what he stole to Rio de Janeiro. With no other way out, she is sent on a boat to Brazil by the thief. On board, the showgirl meets a doctor with whom she begins a romance while the criminal falls in love with her.
A laid back woman, a romantic man and a father who allows his son to choose his partner freely, produce a revival of the famous novel treating its characters in an ironical way.
The story is based on Elenita, the younger of four sisters, young, timid and romantic. To try to change her character and give her an illusion, his father sends her weekly a bouquet of orchids making her believe they are from a secret admirer.
Accidental meeting between a pop-music superstar and a politician's daughter turns into a big romance... but class distinctions, and scandal in the family.
When the man her father wants to impose on her as a husband is coming home, a young woman changes her personality with her maid. The film is set in two periods, the contemporary to the realization and the times of Louis XV.