Good entry in the Rathbone Holmes series with a plot quite similar to Agatha Christie's _And Then There Were None_ (filmed the same year). Solid mystery-horror with an atypical ending, in that Watson is the first to solve the crimes!

A nice callback to old dark house styled murder mysteries with a thick veil of horror wrapped around it. The plot is somewhat guessable but Holmes is able to keep you guessing so the script is quite excellent in that regard. Towards the end Watson also has a night 'alone' in a castle that's sure to appease any spook fan. Recommended.

Well written and thoroughly entertaining. Its a shame that Watson was portrayed as a complete idiot however.

I guessed how this was going to turn out, but maybe it was only a dim memory from reading the original story. There were a lot of pointless dutch angles in the movie, but it was okay. I really feel sorry for Nigel Bruce, who always had to play Watson as a complete idiot. At the end of this movie, he was acting like a special needs child.