In a town in Sicily, a truck driver is found dead by the side of the road, his truck nearby. Newly appointed captain of the Caribinieri, Franco Nero, investigates, and notices a nearby house. Claudia Cardinale is there with her daughter. Her husband, she says, went out looking for work and she doesn't know when he will be back. As Nero investigates, he knows it has to do with the Mafia, under the control of local capo Lee J. Cobb. He's the man in charge of dividing up local contracts for public works, although he is not the top man; that's someone in Rome. His fellow Mafiosi continue on with business as usual, while Miss Cardinale's story changes as she realizes her husband is dead. But no one will talk in public.
It is directed by Damiano Damiani from his own novel, loosely based on the 1947 murder of Sicilian trade unionist Accursio Miraglia. Everyone gives good performances, but it's Cobb, of course, who stands out as a man who comes to respect Nero, who's willing to use extra-legal methods to obtain justice, and who is constantly frustrated by the fear that enforces silence among the people of the town. Slower and more deliberate than the usual movies about the Mafia, it offers a telling portrait of a system that no one is willing to change.