In the 1980s, the period of maximum power of the mafia clans in Italy, the Cosa Nostra of
Palermo and
Corleonesi factions (headed by
Totò Riina), competing for the drug market, maintain a facade of friendship and collaboration. Tommaso Buscetta (Pierfrancesco Favino), affiliated with Cosa Nostra and known as the "boss of two worlds", senses the imminent war between families and decides to move to Brazil, where he can follow his business in peace under the name of Roberto Felici. As he predicted, after his departure tensions begin and the first victims of the feud fall, including two of his sons and his brother. But Buscetta is captured and tortured by the Brazilian police. The mafioso understands that he is facing certain death when his extradition to Italy is agreed. Unexpectedly, judge
Giovanni Falcone (Fausto Russo Alesi) offers him a way out: to collaborate with the police and the judiciary, enjoying the protection of the state. Buscetta, who for some time no longer recognizes himself in the violent and unscrupulous actions of the Cosa Nostra and linked to an idea of the mafia that protects poor people, decides to accept, also to take revenge for the reprisals and persecutions against him and his family. He thus becomes the first justice collaborator in Italian history, making possible the institution in 1986 of the
Maxi-Trial with 475 defendants in the bunker-court of Palermo, where his testimonies - and those of
Totuccio Contorno (Luigi Lo Cascio) - lead to the condemnation and arrest of numerous members of the mafia, put to the test for the first time and in the spotlight of the state and public opinion. Organized crime will respond with the assassination of Judge Falcone in 1992 in the attack known as the "
Capaci massacre", where in addition to the magistrate, his wife
Francesca Morvillo and three escort agents lost their lives. Buscetta, under protection in the United States, will return to Italy to honor the pact with Falcone and testify in the so-called "trial of the century", which involved
Giulio Andreotti, the main exponent of the
Christian Democrats and a great protagonist of Italian politics in the second half of the 1900s, and numerous other politicians, thus bringing to light the strong ties between the state and the Mafia. ==Cast==