From Sherlock Holmes to Sam Spade; Nick and Nora Charles to Nero Wolfe and Archie Goodwin; Harry Lime to Gilda, Madeleine Elster, and other femmes fatales--crime and crime solving in fiction and film captivate us. Why do we keep returning to Agatha Christie's ingenious puzzles and Raymond Chandler's hard-boiled murder mysteries? What do spy thrillers teach us, and what accounts for the renewed popularity of morally ambiguous noirs? In The Mysterious...