A vaudeville singer secretly marries a wealthy landowner, who soon returns to his ranch, fearing the rejection of his snobbish family. To teach him a lesson, she shows up at his estancia pretending to be a maid.
Juan Carlos Thorry is a police inspector who must solve the mystery of the death of the warden of a boarding school for young women, for which he goes undercover as a music teacher. The main suspect is the mischievous schoolgirl María Duval. A series of entanglements leads the protagonists to becoming romantically involved and to finding the culprit.
A woman's dilemma between love for her mother and passion for a man.
