For Victor Cox, a professor of film history, the Hollywood films noirs of the 1940s and 1950s are more real than his daily life. When his wife is found drowned, Cox is the first murder suspect. He falls in love with a student who looks like the 1920s film star Louise Brooks, but she disappears at a Belgian seaside resort. Smeared in lipstick in their hotel room are the words "No Sale," the same words Elizabeth Taylor wrote on a mirror in...