Sherlock Holmes film set in 1940s London, where a series of inexplicable murders is baffling the police: not only are the victims unconnected, but they have all had one of their fingers surgically removed.

"Sherlock Holmes: The Woman in Green" (1945) Starring Basil Rathbone, Nigel Bruce Based on the stories by Sir Arthur Conan Doyle Screenplay by Bertram Millhauser Produced & Directed by Roy William Neill

More info: en.wikipedia.org/wiki/The_Woman_in_Green