Santo vs. the Diabolical Brain

Directed by Federico Curiel

With El Santo, Ana Bertha Lepe, Roberto Ramírez Garza, Celia Viveros and Fernando Casanova

Investigators Conrado and Fernando take a leave of the absence from the police force to track down Fernando's girlfriend Virginia. Virginia, a reporter, has left town and is working undercover as a barmaid in order to interview Refugio Canales, a criminal and small town municipal president. Conrado and Fernando soon call their friend Santo for help.