In the Café of Lost Youth is vintage Patrick Modiano, an absorbing evocation of a particular Paris of the 1950s, shadowy and shady, a secret world of writers, criminals, drinkers, and drifters. The novel, inspired in part by the circle (depicted in the photographs of Ed van der Elsken) of the notorious and charismatic Guy Debord, centers on the enigmatic, waiflike figure of Louki, who catches everyone’s attention even as she eludes possession or comprehension. Through the eyes of four very...