Mauro wakes up on the beach in front of the villa where Germana had arranged to meet him the night before. He is drunk, he doesn't have his service pistol and he has been hit in the head. At home he discovers Germana in bed with the man from the hotel, both in a pool of blood. Captain Rea's carabinieri arrive: shortly after, Commissioner Corsi and Roberto, Giulia recognizes him as the man who saved Sabina. Mauro follows Germana to the hospital: the woman is seriously injured, the man is dead. Prosecutor Altieri entrusts the case to Rea, Giulia allows Roberto to investigate in parallel: she doesn't know that the officer has found Mauro's pistol and has handed it over to Boni of the forensic team to determine if it is the murder weapon.