Un delitto d'onore (lit. 'A Crime of Honour') is a novel written by Giovanni Arpino in 1960, in which the writer denounces moral and social prejudices linked to honour killing, once used as extenuating circumstance in Italian law. The novel was adapted into Pietro Germi’s highly regarded 1961 comedy Divorce, Italian Style, starring Marcello Mastroianni. Source: Wikipedia (en)