Movie Review: Shadows on the Stairs (1941)
Synopsis: Joseph Reynolds secretly owns the boarding house he rents a room from while conducting mysterious business with his partner, Ram Singh. and carrying out an affair both with the mistress of the house and the maid. When he is found brutally stabbed in his room, all the house's tenants become murder suspects.
You can read my review here: Movie Review: Shadows on the Stairs (1941) (wizzley.com)