Provincial University professor from England chances to meet his diabolical, selfish twin while on vacation in Paris. Daphne Du Maurier's novel gets a highly polished screen-treatment, with star Alec Guinness very fine in the dual role, the split-screen photography and editing pulled off with skill. After being tricked into assuming the French nobleman's eccentric life, the teacher finds himself settling well into this new role as a business tycoon and family man--until his glinty-eyed look-alike returns. Bette Davis has a small but important, amusing role as a dowager Countess, and there's also a wreck of a wife, a wise little girl, a loyal chauffeur, and an Italian mistress. Gore Vidal worked on the adaptation, and the literate script is absorbing yet constricting for the teacher-character (he can only attempt to explain so much without throwing the whole plot off-course). There's a lot of talk in the early stages that the Count is delusional and perhaps schizophrenic, all of which is quickly dropped once the teacher assumes his life. Still, it's a smartly-planned movie, one without hysterics or false dramatics. Guinness seems a bit uncomfortable at times, though this may have been intentional and is acceptable behavior here. A very entertaining film with some weak or disappointing passages, but just as many adept ones and a satisfying finish. *** from ****