Guido Guerrieri is a brilliant lawyer, poised between success and fragility. A boxing enthusiast, nostalgic for the lost love of his wife Sara, from whom he is separating, Guerrieri tackles the cases at the centre of his theatrical courtroom defences with acumen, sensitivity and rhetorical skill: a client who emerges like a ghost from his past, the mysterious disappearance of the young Manuela, the murder of a female biology researcher and, above all, the case of an old friend, Judge Larocca, a respected magistrate accused of corruption. Supporting him in these challenges are his trusted colleague Tancredi, a skilled police inspector; Annapaola, a former crime reporter now a daring private investigator; Consuelo, an efficient trainee at the Guerrieri law firm and the new trainee Tony, chronically absent-minded yet unpredictable and brilliant.