A Ciascuno Il Suo (aka We Still Kill The Old Way) (1967)

Set in Sicily, a womanizing pharmacist (Luigi Pistilli) receives death threats but he and his group of friends don't take them seriously. But when the pharmacist and a friend (Franco Tranchina) are killed, a mild mannered professor (Gian Maria Volonte) decides to do his own investigation. What he uncovers is so disturbing that he becomes paranoid. Based on the novel TO EACH HIS OWN by Leonardo Sciascia and directed by Elio Petri (THE 10TH VICTIM). Winner of the best screenplay at the Cannes film festival, this is an exceptional political thriller. What seems like a crime of passion is just a veneer to hide something much more vile. A corruption that has poisoned an entire town so that our protagonist doesn't know who to trust. Volonte's character is an unusual choice for a "hero". Sexually backward, he still lives at home with his mother and grandmother! His innocence doesn't prepare him for the enormity of the corruption he finds. With Irene Papas, Gabriele Ferzetti, Salvo Randone and Leopoldo Trieste.