In the late 1970s and early 80s, assassinations in Sicily get the attention of Communist deputy, Pio La Torre, who appeals to General Carlo Alberto Dalla Chiesa to become prefect in Palermo and take on the Mafia. Dalla Chiesa approaches the job with the same focus and methods he used in hunting down the Red Brigade.

This film is very much a docudrama which portrays the difficulties of Italian life circa 1963 due to the absence of a divorce law. Five scenarios with different actors portray realistic situations where divorce is clearly warranted but, because marriage was strictly in the purview of the Catholic Church at that time, which strictly forbade divorce, these people are shown to suffer the consequences in their daily lives. Italy got its first civilian divorce law in 1970.

Enrico Mattei helped change Italy’s future, first as freedom-fighter against the Nazis, then as an investor in methane gas through a public company, A.G.I.P., and ultimately as the head of ENI, a state body formed for the development of oil resources. On October 27, 1962, he died when his private airplane crashed during a flight to Milan. Officially, it is declared an accident, but many journalists explore other plausible reasons for Mattei's untimely death.

Political activist Salvatore returns to his native Sicily and stirs up trouble among the peasants, urging them to confront the Mafia and demand the right to plough their own fields. The peasants refuse to help him, and Salvatore is marked by the Mafia as a troublemaker.

A struggling chef and a kind-hearted thief form an unlikely bond on the streets of Rome, finding hope and a chance to rebuild their lives together.

Young Franco is imprisoned for murder and rises to become the feared and powerful 'Professor', taking control of Naples' underworld from behind bars.