Geachte Heer M. by Herman Koch

A celebrated novelist is confronted by a mysterious woman who claims intimate knowledge of his life, sending letters that blur the line between fiction and reality. As past choices and moral compromises surface, his public persona and private relationships come under threat, forcing him to reckon with the consequences of his work and the stories he has told. The novel is a darkly comic, unsettling meditation on fame, responsibility and the power of narrative.