Overview: Operation Mafia Capitale continues and this time the Mobile is targeting a paid municipal manager who manages the assignment of lucrative public contracts. To complicate matters, a man accused of his wife's murder takes Roberto Ardenzi hostage at the police station, shouting his innocence: only by helping him clear himself will they be able to convince him to surrender. In the meantime, Claudio Sabatini tries to find out who stole his diamonds.