八零年代初期，海洛因的買賣在西西里黑手黨各個老大之間引發了一場戰爭。身為黑手黨一員的托瑪索布斯凱塔逃亡到巴西。但在義大利，敵人紛紛來算舊帳，遠在他國的布斯凱塔眼睜睜看著在巴勒摩的兒子和兄弟被殺害，他知道自己也許就是下一個。他在巴西被巴西警方拘捕後，被引渡回義大利。布斯凱塔隨後做了一項決定，將徹底改寫整個黑手黨的命運。他決定配合吉安維尼法爾康法官的調查，背叛自己曾經對「我們的事業」發過的誓。

Italy, early '90s. Calm, clever and inscrutable, politician Giulio Andreotti has been synonymous with power for decades. He has survived everything: electoral battles, terrorist massacres, loss of friends, slanderous accusations; but now certain repentant mobsters implicate him in the crimes of Cosa Nostra.

Palermo, Sicily, 1984. Examining magistrate Giovanni Falcone allies with Tomasso Buscetta, a former mobster, to defeat the clan of Corleone, the ruthless Mafia faction that rules Cosa Nostra with an iron hand, cruelly eliminating all those who dare to oppose its immense power: other criminals, policemen, judges, even innocent civilians. One of them wants revenge, the other wants justice. But only one can survive such an unequal fight.

Docu-fiction that tells the story of Libero Grassi, the months in which he broke the silence, the silence in which he found himself isolated, until he became an easy target for a mafia clan.

In the late-80s and early-90s, two prosecutors went after the mob in Sicily. Archival footage, gruesome photographs and new interviews are shown.