Everything that has been written about this movie here is essentially correct and largely inarguable. Having said that I enjoyed this horror for the appearance of Harry Lauter in the role of the evil Dr Stewart Victor. Harry Lauter may be one of the greatest actors that no one has ever heard of in cinema history. He appeared in more than 156 movies and countless TV shows. He never once flirted with a main billing except for a co-starring role in 'Tales of the Texas Rangers' in 1955-58. He appeared in movies with James Cagney, Gene Autrey, Lee Van Cleef, James Arness and on and on. He was a perennial 'B' movie co-star with my personal favorite being 'Rocky Jones and the Clash of the Moons' in 1954. Superbeast was his last film appearance. He was also a gifted artist and ran an art gallery for many years. Just thought folks might like to know about a great actor that never really attained fame but who was a Hollywood regular for 41 years!