This study aims to see the clair-obscur effect created by the narrative strategy, and the way that Patrick Modiano, the author of Les boulevards de ceinture uncovers the opaque life-world of the Occupation. In this novel, the confusing, illusionary atmosphere across the reality and the imaginary worlds, as well as the cyclic structure with emphasis on the characters' irresistible destinies, stress up the panic and strange features in Modiano's novelistic world. In fact, the author leads us to think about the nature of writing and it's relation to the memory of history. Through writing, Modiano comprehends and rearranges the ambiguous past history, then finds a way to break away the obscurity by recalling the past time and people