Lucy Swann is trying on a new life. She's cut and dyed her hair and bought new clothes, but she's only got as far as a small town in northern France when her flight is violently cut short. When Inspector Vivier and his handsome assistant Sabine Pelat begin their investigation the chance encounters of her last days take on a new significance. Lucy's death, like a stone thrown into a pool, sends out far-reaching ripples, altering the lives of people who never knew her as well as those of her loved ones back home.