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.
Jorge Salcedo
Pascual Contursi
Diana Maggi
María Esther Gamas
Blanca del Prado
Jacinto Herrera
Pedro Maratea