Imma and Calogiuri enter the cave where the footing is uneven and the two are thrown together. The police have found the boy and De Nardis is called into headquarters for more questioning.

Matteo makes his way to his uncle's apartment. Never mind that his uncle was supposed to come to the station to get him... They agree that there is no point in worrying Matteo's father with the truth.

Camilla and Gaetano still have some loose ends to tie up, but they are not thinking of the same loose ends. He finally manages to tell her he is leaving for a new job.

Imma and Calogiuri confront De Nardis with the prints from the photographic plates. He admitted to knowing about them, but that was all. While they are there, Calogiuri receives a phone call that might provide some leads as to the red Panda.

We meet a few of the musicians attending the conservatory and the orchestra conductor, who is no-nonsense and stern.

Torre is cooking in the archives! Berardi shows up and they talk. Later, Berardi meets up with Camilla to fill her in on the case.

While chatting with her mother, Imma discovers who Peppino Pez Pez was. Diana has the prints from the plates found in Stella's cave dwelling.

A young man is departing by train and says goodbye to his two parents in different ways. In another scene, a little girl is going to school very reluctantly and her brother has to practically drag her there.

The case has been solved and it's the last day of school for Camilla and her students. Who will flunk and who will be promoted?

As sometimes happens, something Pietro says, even in an intimate moment, reminds Imma of some detail in the case. Off she goes with Calogiuri to try for some new leads.

Mattioli's widow recounts the story, told through her eyes, of the murder, including what she heard in the stairwell of the building.

Imma manages to interview Stacchio's father, who is not exactly forthcoming. Back home, Imma gets complaints about her cooking and they listen to the news report about the missing boy.

Both Camilla and Gaetano, for different reasons, arrived at a similar conclusion about the earring. Piccolo and Ferrari have a job to do, but they also do some personal talking.

Leaving school, Valentina and her friend meet up with a certain Samuel who has a little present for Valentina. Imma and Calogiuri see Stacchio's friends and ask them some questions, with the pretext that Calogiuri had lost his dog.

Camilla and Renzo go down to the morgue to identify the dead body. They take with them the earring Renzo found in the stairwell near Mattioli's office. Back home in bed, they discuss some peculiarities regarding the earrings and the corpse.