OK, so the shadowy monster looks like something straight out of an episode of "Scooby Do", but that doesn't make this daft sci-fi yarn any worse than a great many of it's contemporaries - indeed it's actually quite fun to watch as 'Dr. Sam Jorgenson" (Les Tremayne) and hunky "Fred" (Don Sullivan) set out on the trail of a mysterious murderer that is clinically decapitating it's victims leaving no trace of blood, nor of it's identity. The story moves along swiftly for 70 minutes, with some seriously ropey dialogue and effects, but with a bit of suspense too - especially the last ten minutes or so when I defy you not to smile. Sure it isn't at all scary now, but it might just have had you down behind the sofa in 1959.