NEUTRON vs KARATE KILLER (1965)
NEUTRON TRAPS THE INVISIBLE KILLER (1965)

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Wolf Ruvinskis was a masked Mexican wrestler who used the Neutron alias. Unlike the movies of his contemporaries [Santo, Blue Demon, Mil Mascaras, et al], the Neutron movies never include wrestling-in-the-ring segments. Also, Neutron did not share a reluctance to remove his mask. 
Double Feature / Double Disk Set
NTSC playable on any standard US/Canada DVD machine
ATTENTION !!!! European & Australian PAL machine or PAL Blu-ray won't play this disc.
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film one
NEUTRON BATTLES THE KARATE KILLERS (1965)
original Mexican title: Neutron Contra Los Asesinos Del Karate
in Spanish language w/ English subtitles
screen aspect : fullscreen
running time : 89 min.
director : Alfredo B. Crevenna
starring : Wolf Rubinskis (sometimes Wolf Ruvinskis) · German Robles · Ariadna Welter · Chucho Salinas · Rodolfo Landa
Neutron battles a gang of robotic assassins who use their hands and feet as deadly weapons.  These karate killers wreck havoc around the globe, especially in Paris and London, before Neutron is asked to assist in the investigation.
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film two
NEUTRON TRAPS THE INVISIBLE KILLER (1965)
original Mexican title : NEUTRON NEUTRON ATRAPA AL ASESINO INVISIBLE
in Spanish language w/ English subtitles
screen aspect : fullscreen
running time : 92 min.
director : Rene Cardona
starring : Ana Bertha Lepe · Guillerno Murray · Carlos Agostí · Adriana Roel · Jorge Rivero
oddly NEUTRON in the title, superhero Neutron doesn't appear; instead Golden Mask, a good-guy wrestler attempts to stop a criminal who uses invisibility to rob banks, kill people and stalk a pretty nightclub singer (played by Ana Bertha Lepe, from SHIP OF MONSTERS).
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