Gaetano asks Camilla for help in identifying the centurion who found the girl's body.
At home, Renzo is working for the competition when he receives a proposal.

Renzo is at home with Livietta and he is helping her with a project for school. Camilla goes to help Gaetano with the recognition of the centurion, but she will also need Gaetano's help later.

In the car, Camilla and Gaetano talk about commitment in relationships and marriages. When they arrive at Camilla's house, they unload the water heater together, when Renzo sees them.

Renzo tries to convince Camilla that he's not jealous, but she maintains that he's just stressed about the competition. At school, the girls who had received the photos before they were deleted show some details of the centurions to the teacher.

Camilla gives Gigi a ride and asks him what his brother has to do with Holly's murder. Gaetano meets with Meg and shows her the photo of the boy who had lunch with her sister on the day of the accident.

Torre and Gaetano leave Hotel Bisanzio to go towards the Teatro Marcello near the restaurant where the American woman was seen with the man from the identikit sketch. Meanwhile, Camilla tries to talk to Renato with Gigi's help.

Berardi and Torre find the centurion who likes mortadella and they manage to pry some information out of him. Upon arriving at the address they obtained from him, they are presented with a little surprise.

While Gaetano, Torre, and Camilla are in the apartment with Gigi and Renato, their grandmother returns and is frightened upon seeing the police. Chaos ensues. Back home, Livietta has another pet proposal for her father, who is trying to multitask.

The news of the American tourist's murder is broadcast on television when Camilla returns home and finds Renzo very agitated about his project, which, according to him, is missing something.

Gaetano has to discuss the wedding with his fiancée, who wants to contact his professor friend for some information about bullying at school. At work, Renzo is updating everyone on his new ideas for the project.

There's a bit of chaos in class between Aiello and some classmates, Camilla is forced to calm things down. The victim had purchased some diamonds that have disappeared.

Gaetano meets Camilla at school, before Renzo gets there, to ask her a favor. Both seem to want to hide something from their respective partners. Gaetano and Torre talk to the jeweler again.

Livietta tells Camilla that her grandmother promised to give her a tropical fish. Renzo and Camilla don't see eye to eye on the idea. Meanwhile, during the search at Aiello's, Torre finds something.

Renato is questioned after one of the diamonds was found in his room. Camilla wants to believe he is innocent until proven otherwise while the principal already thinks he is guilty. Meanwhile, Roberta will meet Camilla for dinner.

Livietta is still trying to figure out how to convince her father to get a fish. Camilla, before going to dinner with Roberta, stops by to say hello to Renzo who is struggling with his project.