Prior to a city council election, the collapse of a building leaves a land developer and his political backers defending themselves against a scandal.

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.

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.

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