Desideria, a servant girl, dreams of traveling to Buenos Aires. Incredibly, Blas Pastrana, a relative of her employers, is dying in Argentina and expressly asks them to travel with her. When he arrives at his deathbed, he says that he inherits everything to the employee, confessing that she is his daughter, but on one condition: that in less than two weeks she gets married. Her employers try to convince her to marry the son of the family, Jorge, but Desideria is interested in Tito, a nice porteño. Everything ends in a surprise ending.