Professor Fernandez is studying the metamorphosis in living organisms to cure his daughter of a strange disease that occurs in full moon nights.
Clarisa Fernandez
Dr. Alejandro Bernstein
Marcela de Fernandez
Professor Fernandez
Dr. González
Cazador de Lobos
Alicia Fernandez
Crumba
Inspector
Housemaid
Adelita
Commissioner
(uncredited)