Is Moses Herzog losing his mind? His formidable wife Madeleine has left him for his best friend, and Herzog is left alone with his whirling thought, raging against private disasters and the myriad catastrophes of the modern age. In a crumbling house he writes frantic, unsent letters to friends and enemies, colleagues and famous people, the living and the dead, revealing the spectacular workings of his labyrinthine mind and the innermost secrets of his troubled heart.