Doctor X is a somewhat dull, generic movie aside from a little comic relief from a maid and the protagonist who is a newspaper reporter trying to get a story on the Moon Killer. The name of Doctor X actually belongs to the scientist in charge who is played by Lionel Atwill. What makes this movie worth seeing at all is the early color process of the movie which personally I find fascinating from a visual perspective. They did not have blue yet so every color in the movie belongs to the red or green family. It gives the entire deal a really interesting surreal perspective. Pretty much everything else about the movie is just regular ordinary stuff. As a matter of fact it takes forever until anything actually happens. However, just for the appearance of the movie alone this is a great atmospheric movie worth seeing during a slow day/evening.