This is the tale of a man who transforms into a violent lizard creature whenever he’s in the sun too long. No, he’s not the third wheel love interest in an upcoming Twilight reboot, he’s The Hideous Sun Demon! It’s the late 50s, a time when exposure to radiation still caused fun stuff, like superpowers and shape-changing, as opposed to less fun stuff, like, y’know, death. After some radioactive material falls off the toy train the scientists use to transport it through the lab (actual plot point, not a joke) mild-mannered genius drunk Dr. Gilbert McKenna is changed forever. Sunlight turns him into a reptile man-monster, presumably because that’s the rubber suit that was cheapest to rent when they made this movie. But not cheap enough for them to rent the bottom part of the suit, apparently, because he runs around in totally soaked khaki pants for roughly half the movie. Why are his pants so wet? That’s just part of the mystery! It’s a superhuman dose of old-fashioned nuclear mutation fun, stay out of direct sunlight and join Mike, Kevin and Bill for The Hideous Sun Demon!