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.

Olga Arévalo

Inspector Mario Robledo

Directora

Morales

Vicedirectora

Gerardo

Celadora Graciela

Sr. Arévalo

Damián

Médico

Comisario Quintana

Acting

Bailarina

Acting

Alumna

Alumna
March 16, 1948

Olga Arévalo

Inspector Mario Robledo

Directora

Morales

Vicedirectora

Gerardo

Celadora Graciela

Sr. Arévalo

Damián

Médico

Comisario Quintana

Acting

Bailarina

Acting

Alumna

Alumna

