a rainy day in the upper Midwest,and waiting to pick up my grandson from school. had me turning on TCM during it's summer under the stars to see who was being featured today. Constance Cummings I was unfamiliar with, however in the previous movie along with Cummings Ralph Bellamy and Irene Dunne stared. I began watching " finger of guilt. having grown up watching 20,000 leagues under the sea with Richard basehart? ( I think that was the name of the series) I began to watch this film. I love location movies, in particular London in the mid 50's. what a terrific movie. basehart was outstanding and Mary Murphy was absolutely stunning. her beauty and the role she played was outstanding. the supporting actors were great. all recognizable , and such pro's. that made a low budget film so wonderful. really a great surprise for a rainy day. wonderful movie !