Santo vs el estrangulador (1965)

A mysterious killer has been strangling women in a variety theater, and the police decide to bring Santo into the investigation. Santo suspects the killer is hiding undercover as one of the theater employees and must discover his true identity before more women are murdered.

Directed by: René Cardona

Starring: El Santo, María Duval, Roberto Cañedo, Ofelia Montesco, Carlos López Moctezuma, Begoña Palacios

Links: IMDb, Movie posters, Movie stills