The most powerful Tourinese's mafia families meet each other face to face. Commissionary Tosco investigates on the murderer of his wife.

The most powerful families of the Turin underworld, the Reales and the Catanesis find themselves facing each other. Commissioner Umberto Tosco investigates the murder of his wife. Don Paolo discovers his sister-in-law Beatrice's betrayal with Salvatore Reale, all of which will have repercussions on their lives and on the future fate of their families.