Directed by Alfredo B. Crevenna
Written by Mario Garcia Camberos and Rafael Garcia Travesi
IMDB

I had a bit of a hard time following the plot in this one a bit, but as far as I can gather from IMDB and what I remember is wrestlers, who are upset that Santo keeps beating them, and some thugs are trying to take out Santo. The same thugs are also trying to get an inheritence out of a young lady.
I've only seen two Santo movies so far, the first one being Santo en la Venganza de la Momia. This one is the polar opposite, as Santo had several long fights instead of standing around and being an archaeologist like in the Venganza de la momia.
Some of the fights are so long they tend to drag a little toward the end. Likewise, the plot involving the woman inheriting money and the thugs trying to defraud her with a phoney seance is a bit dry. The overall novelty of the movie overcomes the shortcomings, but barely.

5.5/10