Martial Kermeur is accused of murder. In a single day, face to face with the judge, he tells the story of his life in a small Breton town by the sea, recounting his failed marriage to France and his son Erwan, whom he raised alone. He is a simple and humble man who manages the old manor house until it must make way for a large construction site. He wants to be a role model for his son and not pass on the feeling of being on the losing side. Yet, Kermeur fails in his own hopes. He is shamefully betrayed by the real estate speculator Antoine Lazenec, who has managed to deceive the entire town with a glass chimera for years, financially ruining both the community and small investors. A finely crafted novel about a man who wants to live honorably and becomes a murderer.