Cattani arrives in Palermo with the mandate to bring the Mafia under control.

Cattani befriends a heroin-addicted heiress.

Cattani's marriage collapses as he intensifies his fight against the Mafia.

Powerful players encourage a Sicilian judge to force Cattani to put the brakes on his investigation.

The kidnapping of his daughter Paola by the mafia turns Cattani's life into a nightmare; in order not to endanger his daughter, the commissioner accepts everything the mafiosi demand of him.

Cattani faces off against his Mafioso nemesis.