Scotland, 1869. A horrific triple murder committed in a remote rural community in the Highlands ends with the arrest of a seventeen-year-old named Roderick Macrae. His personal diaries make it absolutely clear that he is guilty of the crime. But they also drew the attention of the country’s best lawyers and psychiatrists, who are trying to determine what exactly drove Macrae to commit this monstrous act of violence. Is he insane? In fact, for the court the case has already been essentially decided. And only one lawyer—struggling with all his might to save his client—stands now between Roderick and the gallows…