1970 film by José María Fernández Unsáin

Juan from Altamira, Tamaulipas, arrives at the train station in the capital and is assaulted by Gus. As he finds only ten dollars in his wallet, he believes that Juan brings more money and offers him accommodation in his room to pay the rent. Juan is dedicated to singing and Gus makes his representative. Juan is successful singing together with Susana on stage and radio Azteca, but she does not correspond to his love. As she wants to succeed alone, she goes to Guadalajara but without success. Juan helps her and when she gets a heart illness, she agrees to marry him.