1975 film by Miguel M. Delgado

Sigue de Bellas de noche. La ex-fichera que compró el cabaret sigue trabajando con varios de sus antiguos compañeros, el mesero Fabián, el púgil Bronco que vuelve a boxear, Carmen, la mujer de éste, que vuelve a fichar, la borracha "La Corcholata", enamorada de un viejo, y una francesa y el padrote "El vaselinas", cuyos favores se disputan todas las mujeres, pero que pierde su virilidad y lucha por recuperarla hasta conseguirlo

Innocent women are being kidnapped and used as guinea pigs for a brain transplant experiment. The diabolical Dr. Frankenstein continues his quest to perfect his brain transplant operation to bring back his deceased wife at any cost - even if it means playing with the lives of others. El Santo and Blue Demon are called in to help when their friend Alicia becomes Dr. Frankenstein's next target. It'll take both heroes to go up against the dastardly doctor and go mano a mano with his super strong zombie Golem.

A masked wrestler joins a professor and his niece searching for an ancient medallion to help children. They face a terrifying mummy and a dangerous gangster who want the treasure for themselves.

Dr. Frankenstein and her assistant, Dr. Yanco, are going to bring one of their experiments to life in Santo Vs. Frankenstein's Daughter. She intends to use a monster named Ursus to do her evil bidding. Using a youth serum to retain their vitality, the doctors set their sights upon none other than El Santo. They need his super human blood to regenerate a stronger youth serum. They kidnap Santo's goddaughter, Norma and lure him into Dr. Frankenstein's lab where he is captured and enslaved. Will Santo make it out alive?