A now retired Holmes (Peter Cushing) is called on one last time to assist Scotland Yard with a strange case, that they can shed no light on. Three bodies have been found, one in the Thames and two others in Whitechapel, all bearing a hideous look of fear on their faces, but all showing no signs of cause of death. Holmes is intrigued enough to take the case and with Watson (John Mills) in tow he sets out to solve it. However before he can, he is called on by the Home Secretary (Ray Milland) and a stranger who wants to keep his identity to himself, their plea is for assistance in the case of a missing German envoy, his disappearance, they claim could cause the outbreak of War between England and Germany. The stranger is Graf Udo Von Felseck (Anton Diffring) a German diplomat close to the Kaiser, Holmes impresses Von Felseck as he deduces both his name and his political affiliation. Holmes takes the case and soon finds himself mixed up with a plot to kill millions, he also gets involved with "That Woman" again, one Irene Adler.(Anne Baxter) Pretty decent TV movie from Tyburn films, with a good intricate plot and a fantastic cast, Cushing even this late in his career shows he still had the mental and physical agility to take on the role.