This film kept me riveted with two contradictory forces that drove it along. On one side was the Roger Corman driving a very campy script with cheap thrills and an absurd chain of events. The other side was held by a very somber and serious performance by Ray Milland. No matter how silly it gets, you never want to laugh at a determined Ray Milland. Don Rickles joins and is able to get a few insult jokes in, but soon he reveals himself as an unpleasant con-man, wanting to exploit the x-ray eyes. As the film moves into its fervent finish, there is increased use of "Spectarama," a photographic effect used to simulate a POV shot of x-ray vision. Combined with a creepy score, the climax proves to be an intense and almost uncomfortable experience. A very memorable movie.