I don't know if it is still the case, but the Mexicans loved their wrestling in the '60s: there are countless 'luchador' movies out there, the grappling often combined with horror. Personally, I find the lucha libre movie genre rather boring, and no amount of cheesy monsters or ridiculous robots is going to change my mind.
This one sees Dr. Orlak (Carlos Agostí) deciding that building obedient mechanical robots is too costly and time consuming, so he sends his one and only metal slave out to abduct prominent scientists to help him create an army of radio-controlled people. One of the kidnapped boffins is the uncle of luchadora Gaby (Regina Torné), who teams up with fellow wrestler Gemma (Malú Reyes) and two secret agents, Arturo (Joaquín Cordero) and Chava (Héctor Lechuga), to try and find out what has happened to the missing men.
The appeal of wrestling is fairly subjective, but what I think we can all agree on is just how crap the robot in this film is: a man in a silly metallic mask with a crap perspex chest full of lights and widgets, and a slot into which details of its victims are fed. It's so cheap!!! As if to compensate for the rubbish robot, director René Cardona also includes a monster (one of Orlak's earlier unsuccessful experiments), which goes on the rampage in the final act. It is also rubbish. In fact, the whole film is rubbish. Why do I subject myself to this kind of garbage?