Dr. Henry Jekyll experiments with scientific means of revealing the hidden, dark side of man and releases a murderer from within himself.
Mario Soffici
as Dr. Jekyll / Mr. Hyde
Ana María Campoy
as Sara
Olga Zubarry
as Lola
José Cibrián
as Dr. Anderson
Federico Mansilla
as Dr. Dayon
Panchito Lombard
as Enriquito
Arsenio Perdiguero
as Carmelo
Rafael Frontaura
as Actor
Jesús Pampín
as Policía
Rodolfo Crespi
as
Gloria Ferrandiz
as
Martha Atoche
as
