The "stone in the mouth" is the scar that the mafia makes on betrayal's corpse. The modern mafia has the historical and sociological roots into the birth of the american capitalism at the time of Roosevelt. The American "Cosa Nostra" applies the similar methods as the sicilian mafia: same apparatus, same "omertà", same power and same terror. Giuseppe Ferrara, journalist and writer, uses fragments footage, film clips, and current news to make this film.

Faccia di spia tries to tell the story of the CIA and other government intelligence agencies with lots of re-creations and dramatizations and points out some of the more brutal aspects of the intelligence community from around the world. Wars are started, all facets of everyday life are controlled, innocent people are tortured needlessly and subjected to extreme violence.

Two gay men living in St. Tropez have their lives turned upside down when the son of one of the men announces he is getting married. They try to conceal their lifestyle and their ownership of the drag club downstairs when the fiancée and her parents come for dinner.

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.