Plot
In November 2011, Filippo Malgradi is an Italian MP involved in a bill to change the classification of certain administrative areas; his objective is to allow a real estate project in Ostia so that it could be turned into a Las Vegas-like city. He has close relations with a local crime boss known as "Samurai" — a former neo-fascist terrorist turned professional criminal under the cover of an unsuspecting pump station owner — who also has deep interests in the real estate project. Samurai has privileged ties to the Vatican Bank, who will finance the project for profit.
At a hotel room, Filippo fraternizes with two prostitutes, Sabrina and Yelena; Yelena, who is underage, dies from cocaine intoxication. Filippo leaves and asks Sabrina to dispose of the body; she calls Alberto "Spadino" Anacleti to help dispose of the body by dumping it into a reservoir.
Spadino is from a Romani crime family who made a fortune by violent means as money lenders and debt collectors. They lent money to the father of Sebastiano, a pimp who organizes secret parties in his family villa for important members of the Italian high society. Sebastiano's father commits suicide after being unable to pay his debts, after which Manfredi Anacleti, the patriarch of the Anacleti family, summons Sebastiano, intimating him to relinquish all his property to pay for his father's debts.
Aureliano "Numero 8" is a local thug who controls the target of the real estate project permitted by the bill in discussion. His father was also a criminal and a close friend of Samurai. He has agreed with Samurai a division in profits as long as he convinces local small business owners to sell their properties at a bargain to Samurai. Aureliano is in love with a drug-addict named Viola.
Spadino decides to blackmail Filippo into purchasing drugs and prostitutes solely from him and the Anacleti. Filippo asks Aureliano to intimidate Spadino, but the confrontation becomes more violent than expected, and Aureliano kills Spadino leaving Manfredi Anacleti infuriated and thirsty for revenge.
Sabrina, fearing for her life, asks Sebastiano for help, and he lets her stay at his house. She reveals the name of Spadino's killer to him, and he then decides to tell Manfredi in exchange for clemency and his family's villa. Anacleti's henchman unsuccessfully attempt to kill Aureliano. Fearful that an all-out war between Aureliano and Manfredi could threaten his real estate interests, Samurai decides to intervene between the two to bring peace. In the meantime Manfredi learns about the real estate project and also wants his share in the business.
Manfredi blackmails Sebastiano to hand him over Sabrina; in turn, Sabrina tells Manfredi Anacleti the name of the politician who is behind the project, which she reveals to be Filippo. Manfredi bursts into Filippo's apartment and takes his son hostage, demanding a share of the profits. Filippo, enraged, asks Samurai for protection. Samurai, who does not want to lose the transaction, attempts to reason with Aureliano, but the latter tells Samurai that "he is old and outdated". Samurai, offended by Aureliano's words and also fearful that the Vatican would back down on financing the project, decides to kill him and his henchmen. During the shooting, Viola hides and manages to escape.
Manfredi reneges on his promise to return the family villa to Sebastiano, and severely beats him. The bill is approved but Yelena's body is found and Filippo is warned that the judiciary may investigate him. Sebastiano, enraged, assaults Manfredi when he returns home at night, beats him, and locks him in the cage of Manfredi's own ferocious pit bull, who mauls him to death. After the approval of the bill, the Prime Minister resigns from office, which could jeopardize Filippo's parliamentary immunity. Finally, Viola kills Samurai while he is leaving his mother's apartment.
