In Milan, Italy, the Mafia is dominated by the Rossi, Sotto, Costa, and Castellano families, who are locked in a perpetual power struggle. Valentino Rossi—an illegitimate son of the Rossi family with humble origins—seeks to seize control by entering into a marriage of convenience with Isabella Sotto, the daughter of the Sotto family, leveraging their influence to rise to power. Marcus Costa, the ambitious head of the Costa family, stands as the greatest obstacle to Valentino’s ambitions. Amidst this web of conflicting factions, conspiracies, and bloodshed, the arrival of Lia Cullen—a top law school graduate and trainee lawyer—alters the trajectory of Valentino’s life.