Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
Holmes (Peter Cushing) investigates three deaths and the disappearance of a German envoy. John Mills, Anne Baxter, Ray Milland. Von Felseck: Anton Diffring. MacDonald: Gordon Jackson. Directed by Roy Ward Baker. Also known as "Masks of Death."