Even though Aldo and Margherita were very different in many ways, they came together in their skepticism. Towards the end of her life, Margherita couldn't move around much, but her brain never stopped going.

Camilla finds Dora's diary with some shocking information. Gaetano and Sonia talk about the Nicola Sorrentino case, which is at a standstill. Camilla shows up at police headquarters, too, to talk to Gaetano.

Melody comes to the bridal workshop and almost everyone is happy to see her. Dino has a surprise for her and takes her outside. Manrico, the singer who had saved a wedding in the past, is at the workshop to meet with the bride and groom.

Caravaggio falls ill and makes the acquaintance of Mario Minniti who becomes a friend to him. He takes him to the hospital of the church of Santa Maria della Consolazione in Rome.

In this segment, Margherita talks about her choice not to have children and also discusses her position regarding God. She can't prove he exists nor can she prove he doesn't.

At the dinner table, Livietta uses a word that has a vulgar connotation when used in the singular and her parents need to explain some things. But there's an upside. The conversation gives Camilla an idea regarding Dora.

Melody gets back a day early and finds Nora in her bed. Nora has to offer some explanations and meanwhile, the girls do some drinking.

Once in Rome, Caravaggio looks for work in the studios of 2 Italian painters who were well-known at the time. Nobody seems very interested in his work.

We discover that Margherita Hack was a devoted fan of the long-running TV series, Un posto al sole [a place in the sun]. She explains why. Francesca goes back to Trieste and meets up with Eda who talks about having lived in the same house with Margherita Hack.

In the piazza, Giuseppe discusses the war with some colleagues. He then runs into an old acquaintance. Later, in the lab, he talks about science and faith with his professor friend.

At Dora's funeral, Psalm 23 is recited. Camilla is there, but not everyone appreciates her presence. Later, Sonia goes over to Gaetano's with some treats, but senses something is wrong.

Eva is very happy with her wedding gown, but her daughter, who came with her, has a hard time accepting the situation. Ugo is desperately trying to figure out where Nora might be staying.

It's dinner time in the Martini household. Ciccio is finishing his homework, Alberto is going to play soccer with some friends, Maria apologizes to her father, and Giulio shows up to make trouble, as usual.

Michele goes back home after his mother dies and there, he spends some time with his childhood friend, Costanza Colonna. He tells her about his plans to go to Rome, the artistic center of the universe.

Margherita Hack spent some time in politics and was also an entrepreneur at times. But she had a lot of fun, too. On the panel with Camilleri, the author of the Montalbano stories, they all come out (in unison) with the famous introduction Montalbano sono (Montalbano, I am). Putting the verb at the end is typical of Sicily, where the story takes place. Otherwise, it would be Sono Montalbano (I'm Montalbano) or, on the phone, "This is Montalbano."