Following the excitement of this film which depicts the intelligence of Sherlock Holmes, who seeks to solve the case of disappearing the husband of a beautiful woman and find out that there are many secret things behind this case.
The Private Life of Sherlock Holmes is comparatively mild Billy Wilder and rather daring Sherlock Holmes, not a perfect mix, perhaps, but a fond and entertaining one.
The plotting is weak, and ill-served by the movie's generally lackadaisical approach; but the dialogue is witty, and Wilder and Diamond get a lot of mileage out of the idea that Sherlock Holmes is as fragile as he is brilliant.
It is in large part old-fashioned, in that it's mile-wide and ancient-history Sherlock Holmes, but it's also handsomely produced and directed with incisiveness by Wilder.