Eva ruminates on her past life and gets down to work on the task at hand. Meanwhile, Lola and Gina are waiting for the choir concert to start.

Both Renzo and Guia have to change their plans and don't know how to tell each other. Carola gives Guia a reality check, and Toni gives up some important information.

Daniela explains what are called "indefinite modes." They are indefinite because they don't refer directly to a person or object. They commonly occur in a subordinate clause, and we need the context of the main clause to give us that information. There are three forms: the infinitive, the past participle, and the gerund.

We go inside the Pisa Cathedral and see how marvelous it is, from the granite columns to the majestic pulpit designed by Giovanni Pisano, which, miraculously, survived the fire of 1595.

Ugo and Nora have taken on the huge task of planning and executing a dinner, and now they need help from the other people who work at the atelier. They also have to think up some good topics of conversation to keep relations between the two families as peaceful as possible.

Camilla goes to the police station and has to wait for Gaetano in his office. He is very mad at her, but she clears up some things that could make a big difference in the case.

Eva has a lot weighing on her, but her state of mind really takes a nosedive when, in town, she sees Dante from afar. Meanwhile, she still has to deal with getting Andreina in shape for the gala.

Guia couldn't have imagined what was in store for her after a ride with Renzo. While they work, they tell each other about their respective love lives.

Rosmini takes a look at the body. Manara talks to the woman who found the dead man. He goes back to the police station where the new member of his squad is waiting for him.

Why does the Leaning Tower of Pisa lean? Alberto answers this question and others about one of the most famous monuments in the world.

It seems impossible for Ugo and Nora to be on the same wavelength at the same time. This time it's Ugo who does something without consulting Nora and she gets good and angry.

By now the news about Mazzeo is in the newspapers and of course, his students see the headline. When a student reads the article in class, Camilla has a feeling something isn't adding up. Vanda calls the police.

There is a glitch in the girls' plan, but nonetheless, Eva manages to do what she has to do, also thanks to Lola's help. They get closer to figuring out what the Frenchman is up to.

Manara meets first with Casadio and then with Raimondi, but doesn't get his answers answered to his satisfaction. But then, he gets a phone call about a dead body, so he has to race off.

This is the famous aria for tenor from Puccini's Turandot, sung here by the legendary Luciano Pavarotti. Nessun is short for nessuno (no one) and dorma is the third person subjunctive of the verb dormire (to sleep) used as an imperative for the herald to proclaim that no one in the city may sleep.