Sara is home at dinner arguing with her mother who finds her unbearable. Sara's phone rings with an audio cue indicating the caller. Robbo and his sister Chiara are going home on the tram when, out the window, they see someone they think they recognize.

Barbara is practicing piano in the presence of her mother, who tries to encourage her. Little by little Barbara manages to focus on the music, and perhaps not only the music. Another pianist is playing the same piece in a music store. He might be there because he has no piano at home.

Tozeur is a city in southwestern Tunisia, near the Algerian border. The train line referred to in the song was originally built for the king in the early 1900s when Tunisia was still a French protectorate. More info about the song here.

Matteo is at home with his uncle, doing a tricky jigsaw puzzle and ready for dinner. Even though it is clear to Matteo that his uncle is gay, his uncle is very uncomfortable talking about it. Matteo lets his uncle know that there is a girl he likes.

A colleague of Marioni's chides him for having treated Matteo as he did. He tries to justify his actions, and then goes to have a word with Rosario, a percussion student.

Marioni puts Matteo to the test, asking him to play first violin in the Brahms symphony, together with the entire orchestra. Later, Domenico tells him about someone who had crumbled under Marioni's harsh treatment.

Matteo is having a violin lesson when Marioni passes by in the hall and hears him. Matteo's lesson ends early and he is about to learn more about the orchestra conductor everyone thinks of as il bastardo (the bastard).

Imma calls the beautician to the Prosecutor's Office, where she asks her some seemingly bizarre questions. Back home, Eustacchio's funeral is on TV. Imma's mind continues to focus on the events surrounding his death.

A teacher reads a passage from one of Shakespeare's sonnets and asks the class to interpret it. Matteo speaks up. Here is the original English: "Mark how one string, sweet husband to another,
Strikes each in each by mutual ordering;
Resembling sire and child and happy mother,
Who, all in one, one pleasing note do sing:
Whose speechless song being many, seeming one,
Sings this to thee: 'Thou single wilt prove none."

Matteo arrives late for class and is told, to sit next to Sara who begins asking him questions. It turns out she is almost blind. After the lesson, Matteo meets some of his classmates.

Gaetano is leaving, ready to board his plane, but he clearly wishes Camilla would show up. Meanwhile, it is Potti's birthday and celebrations are going on at home.

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.

Apulia is famous for the characteristic trullo. But another typical building is the lamia, a rural building with a square base, sloping dry stone walls and a roof usually made with a lowered barrel vault or a dome. This characteristically simple construction consists of a single room, used as a temporary shelter for the farm's agricultural workers or storage. Today, many of these farms have been transformed into hotels.