A Window in London (1940)

"A Window in London" is a 1940 Thriller movie directed by Herbert Mason and starring by Michael Redgrave, Sally Gray. A man witnesses a murder that isn't a murder, only to get involved with the magician and his wife who created the illusion. The insanely jealous magician husband eventually kills his wife, making for complications in life of unhappily married man who is now involved more than he ever thought he would be.