Sherlock Holmes and the Scarlet Claw - 1944

The Scarlet Claw is a 1944 American mystery thriller film based on Sir Arthur Conan Doyle's Sherlock Holmes detective stories. Directed by Roy William Neill and starring Basil Rathbone and Nigel Bruce, it is the eighth film of the Rathbone/Bruce series.
Sherlock Holmes and Dr. Watson are in Canada attending a conference on the occult, when Lord Penrose receives a message that his wife Lady Penrose has been murdered in the small village of La Mort Rouge. Holmes and Watson are about to return home when Holmes receives a telegram from Lady Penrose, issued before her death, asking for help as she fears for her life. Holmes decides to investigate her death.