Thanks to Luca's help, Viola manages to obtain house arrest. A painful meeting between the two will clarify the woman's true feelings. Giulia, meanwhile, continues to investigate Balsamo, against all odds. Giulia is forced by an unforeseen event to leave for Palermo, but the investigations on Balsamo and his role, the link between mafia and politics, resume. And while Corsi investigates in the Sicilian capital, in Rome a serious threat looms over an honest and incorruptible councilor.