I really liked this movie for several reasons. I thought that the special effects were very good for the time, 1964, the hypnotist was excellent. He played the part perfectly. It was a great story line. I think that the movie was under rated. The writer should have gotten special notice. Last but not least, when I first saw this movie I was 13 and my male hormones went nuts over the assistant who showed off her butt. The movie had a great atmosphere that I wish modern day movie directors would take notice of. There was no slash, no gore and no bad language. Instead of showing all the blood and guts of todays horror movies, they should take notice of movies like this.