Murder mystery B-movies are a dime a dozen and they must have made thousands of them in the 1930s and 40s. Because of this, I had low expectations for "By Whose Hand?"....fortunately, my first instinct was wrong!
The story begins with a man being murdered while aboard a train. Soon, you see newspaper headlines announcing that 'Killer' Delmar, the escaped maniac, is responsible! The scene then cuts to a train station and a bunch of different folks and their stories are introduced...much like you'd see in a film like "Airport". This would seem to indicate that Killer Delmar will strike on this train. But what you don't realize is that there are more evil people aboard. There's the convicted criminal being taken to prison as well as several career criminals who are hiding out among the many passengers.
The reason why I enjoyed this Columbia movie so much was the excellent writing. I almost gave the movie an 8 but decided against it due to a couple cheesy things I saw in the film (such as the comic relief drunk)...but otherwise an excellent film. In particular, the finale is marvelous and makes such a humble picture seem bigger and better.