
Plot
Calpuina is a night-watchman in a wharehouse, a perfect job for him. When some thieves break in and steal some crates, El Santo is after them because they are using the wharehouse for diamond smuggling. Capulina hinders their capture. Then he decides that he will put on a wrestler's mask and help El Santo to caputre the crooks.
Trailer
Cast

El Santo
Santo

Gaspar Henaine
Capulina

Liza Castro

Crox Alvarado
Chief of Police

Carlos Agostí
Cedric

Miguel Gómez Checa
Scientist

Nathanael León
Henchman (as Frankenstein)

Mario García 'Harapos'

Ángel Di Stefani
Capulina's boss

Marisela Irigoyen
Female robot (as Marisela Irigollen)

Juan Garza
Henchman

Víctor Alcocer

René Cardona III

El Hijo del Santo
(as Jorge Guzmán)

Rogelio Gaona

Guillermo Hernández