The Scarlet Claw (1944) 红爪子

The Scarlet Claw is a 1944 Sherlock Holmes movie directed by Roy William Neill, starring Basil Rathbone and Nigel Bruce. It is the eighth film of the Rathbone/Bruce series. David Stuart Davies notes on the film's DVD audio commentary that it's generally considered by critics and fans of the series to be the best of the twelve Holmes films made by Universal.

When a gentlewoman is found dead with her throat torn out, the villagers blame a supernatural monster, but Sherlock Holmes, who gets drawn into the case from nearby Quebec, suspects a human murderer.