The inspectors of the 10th Tuscolano are dealing with a case involving a Muslim girl, Khadigia, beaten and repudiated by her husband Yusuf. Khadigia claims to have never been with a man and it will be up to Anna and Elena to understand what lies behind this mystery. In the meantime, Luca and Alessandro, who narrowly missed capturing Giulio Flaviano, are now convinced: there is a mole who informs the criminals of their every move. The death of a twenty-year-old involves our team in a case with no apparent solution. Suspicions focus on the two roommates. Anna's brilliant intuition will reveal a much more bitter truth.