Set against the backdrop of World War I in a small French town, the novel delves into the cold and somber atmosphere of a community living in the shadow of conflict. The story revolves around the mysterious death of a young girl, whose body is found by the river, and the subsequent investigation that unfolds years later. The narrative, rich with melancholy and introspection, is told through the eyes of a policeman who becomes obsessed with the case. As he delves deeper into the town's secrets and the grey souls of its inhabitants, the lines between victim and perpetrator blur, revealing the complex nature of guilt and the human psyche amidst the pervasive despair of war.

The book is a gripping thriller that takes the reader on a dark journey through the depths of human depravity and the complexities of justice. It follows a French journalist who becomes entangled in a web of murder and mysticism as he investigates a series of gruesome killings that span from Asia to Europe. As he delves deeper into the case, he encounters a mysterious woman with a tragic past and uncovers a sinister plot that challenges his own moral boundaries. The narrative weaves together elements of crime, suspense, and psychological drama, leading to a chilling exploration of evil and the thin line that separates guilt from innocence.