Sherlock Holmes (Basil Rathbone) and Dr. Watson (Nigel Bruce) investigate murders at Musgrave Manor, an estate being used as a convalescent home for soldiers suffering from combat fatigue during WW2. Fourth in Universal's marvelous Sherlock Holmes series is a highly enjoyable murder mystery within a gloomy old mansion. This one's just loaded with atmosphere. Great wind and lightning effects, nice use of shadows, and some cool sets. Good supporting cast includes lovely Hillary Brooke, Dennis Hoey, Halliwell Hobbes, and Milburn Stone of Gunsmoke fame, who at this point was a contract player at Universal. A very good entry in the series.