Sherlock Holmes and Watson do battle with their nemesis, Professor Moriarity, over an ancient necklace attributed to Cleopatra. Christopher Lee,Hans Söhnker,Hans Nielsen,Senta Berger,Ivan Desny,Wolfgang Lukschy,Leon Askin,Edith Schultze-Westrum,Bruno W. Pantel,Heinrich Gies,Bernard La Jarrige,Linda Sini,Roland Armontel,Max Strassberg,Danielle Argence,Franco Giacobini,Waldemar Frahm,Rena Horten,Thorley Walters,Corrado Annicelli,Pierre Gualdi,Kurt Hain
