Juanita Román is a singer who sings on buses and, is or is not, lucky to meet Alejandro Castillo, a seemly happy financier, widow, with two sons and a stunning girlfriend, Tatiana. But when Alejandro meets Juanita he is astonished with her talent and bravery, he is determined to make her become a star. In order to achieve his goal Alejandro takes her to live with him in his house. There, Juanita is the object of terrible mockery by his family and by Tatiana, she passes difficult tests while she studies music, glamour, fashion, show biz, and all the things that Alejandro considers appropriated for her career.In the process they fall in love hopelessly. But that love is hard in the middle of the war and the tricks of Alejandro's snob family. Tatiana is extremely angry and jealous and sets up her final trap: she manages to separate them. Juanita triumphs as a singer, but her personal life is devastated and she falls in the arms of Diego Colmenares, a man with no qualms that ends up forcing her to marry him and who exploits her with no mercy. This is the beginning of Juanita's story; the singer that finds love through music and loses it after she reaches success.