There are lots of Sherlock Holmes ish movies. One of the best is Jake Kasdans The Zero Effect (1998) starring Bill Pullman and

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Original theatrical trailer for the 1998 film Zero Starring Bill Pullman, Ben Stiller, Ryan O Neal, Kim Dickens, Angela Featherstone, Hugh Ross, Matt O Toole. Written Directed by Jake Kasdan. From Warner Bros. Pictures.