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.

In front of Imma, Calogiuri, and Diana, Calenzano describes every detail of when he went to Stella's apartment to see her. He's distraught, as he relives the experience.

Cioni is very suspicious about Marta's true intentions toward Andrea. The others begin talking about their past relations and aspirations.

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.

We have a look inside the 12-cylinder engine of the Testarossa to see what kind of grade it will receive out of ten.

There is an amazing variety of fresh and dried pasta shapes and sizes in Italy, referred to as formati (shapes and sizes). Their names have to do with their surface (smooth, rough, grooved), their size, expressed with a suffix, such as -one, -etto, -ino, etc, and/or what they resemble. Marika makes some sense of the vast assortment of pasta found in Italian supermarkets.

Calenzano finishes telling his story and Calogiuri takes him away. Stacchio's teacher stops by Imma's office with a pupil, Nicolas, who has a story of his own to tell.

At the party, tension is high among the friends. Harsh words are exchanged.

Tex Willer is the main fictional character of the Italian comics series Tex, first published in Italy in 1948. The series is an Italian take on the American Old West.

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.

René Arnoux praises the characteristics of the Testarossa, maintaining that it's easy to drive, even for women. He goes on to talk about the cars built by Auto Bianchi.

Pietro goes to his saxophone teacher's house to help her with a technical problem. At home, Imma gets an important phone call that has nothing to do with the case she just solved.

In a church basement, a priest leads some young people in singing to celebrate the eighty-first birthday of Mariolina. Caterina goes to find Angela, who is late with the cake.

The party is over and it is time to clean up and pack up. Cioni seeks out Ilaria to talk about her situation.

What kind of guy was Tex? For the most part, he was tutto d'un pezzo (a straight shooter). But sometimes it would depend on who was writing the story.