The Spider Woman is a 1944 Sherlock Holmes movie, starring Basil Rathbone as Holmes and Nigel Bruce as Doctor Watson.
A series of suicides alerts Holmes to something more sinister.
Faking his own death initially, his investigation leads to a woman who befriends men and muscles in on their financial situation.
An elaborate murder plan makes it look like suicide but just as he’s about to become the next victim, Holmes escapes and the woman and her gang are arrested.