Italian film directed by Pierluigi Ferrandini. On the night of May 26, 1956, a terrible bloody event occurred within the home. In Bari at the dawn of the economic boom, the twenty-six-year-old Franco Percoco, coming from a "normal" lower middle class family, carried out a family massacre - the first after the war to have great media coverage - and was consigned to the news as the "Monster of Bari ".