Diana’s dead body is collected from the cliff and the investigation get even more complicated. Elena and Alessandro have very few evidences. Once again, Elena have suspicions, unfortunately, about Caterina. Elena realizes that Caterina is probably involved in the same prostitution racket as also Diana. Tracing the baby call girl organisation line, Alessandro is wounded. Elena has to go on all alone… and has to arrest Caterina: she’s been recognised in the hotel where Diana went to whoring. Pietro is the only one sure that Caterina is innocent. Just when Elena, after her father suggestion, stop being a policewoman and starts being a mother, Caterina decides to confess the awful truth: Diana killer is Enrico, Caterina’s father. He wanted that Diana, his prostitute, didn’t confess his secret. One investigation is ended, suspicions on Caterina are gone but the tuna factory killer is still free. Elena and Alessandro, recovered after the accident, end up making love and finding again a powerful bond. Elena reveal only to him that Caterina is born after a violence… but she can’t tell him who’s the real responsible. In the meanwhile Samuele seems to hide something… may he be the responsible for the tuna factory explosion?