One asks himself after the movie: who is the devil? He never shows up, but you see his feet. The theme of the Mephisto Waltz of Franz Liszt has nothing do do with the movie. The actors are great: Jacqueline Bisset as Paula Clarkson is even more beautiful without make-up. Curd Jürgens as Duncan Ely is satisfying. But the story misses focus and goes in all directions. The ending is so disappointing that it destroys the building up of the story. After all an interesting subject that deserves a better script.