Luis is a righteous man who begins a struggle and a moral debate with his family, neighbors and close friends when a corrupt municipal official offers a very convenient "arrangement".
A gypsy performer and friend flee the circus troop they work for and find an old house to take refuge. Little do they realize that the house is haunted when they encounter strange men, frightening apparitions, and secret passages.
Giácomo is an Italian man in his forties who is single, dedicated to earning money in his business. He strikes up a relationship with a Spanish singer, whose brother encourages her to conquer him to take her money.
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.
Enrique, a gray office worker who lives a marriage already without passion begins to rethink his life when he receives an anonymous who says that his wife deceives him.