I enjoyed this movie very much. Considering it is a B-movie, in my opinion, it is a good B-movie. It is based on the mystery novel "The Mystery of Hunting's End" by Mignon G. Eberhart, and the movie title "Mystery House" is very appropriate, since a group of people are gathered together in a house where a man was murdered. The acting by the entire cast is good. With the exception of Dick Purcell and Ann Sheridan, I was not familiar with any of them. It is a short movie, but there is much action in less than one hour. I would recommend this movie to anyone who is interested in a good mystery movie. The hour went by very fast.