Lojacono is confident he knows how the murder happened and is able to trick Renato into saying something he couldn't have heard on the news.

One reason mozzarella di bufala (buffalo mozzarella) is so delicious is because the animals are treated with utmost respect. They are milked when they are physiologically ready!

Berardi and his men go after Marino Monti who is at the martial arts center. It was very upsetting for Camilla to see it all so close up. She has a drink with Gaetano to calm down.

Alessandro Piperno comes from a mixed Jewish family and recounts how he learned, at an early age, to cherish the relationship between Jerusalem and Rome, where Christianity and Judaism blend. Thus we come to the end of this episode about the region of Lazio.

Lojacono and Di Nardo go to see Biagio's ex-girlfriend to ask her one more question. She happens to remember something that gives them a new lead. They then go and talk to Renato, Biagio's friend and colleague.

Donato Brenca has been making cheese for about 20 years, and although he strives to make better and better cheese, he sticks to the same method he has always employed.

Having read about Mattioli's death, Camilla rushes to Berardi's office, where he is checking some documents with Torre. She participates and comes across an interesting piece of information.

Annalena continues her conversation with Piperno in his favorite restaurant. They look at some photos from his past while they wait for their meal to be served.

Laura and Lojacono go to Laura's house and she begins cooking dinner. At his hotel, Aragona has a chance to see Irene, the new housemaid, in the dining room and can't take his eyes off her. Francesco brings Giorgia breakfast in bed. It's una graffa (a kind of doughnut).

To make pasta, only 2 ingredients are strictly necessary: semola (durum wheat flour) and water. But atmospheric conditions make all the difference.

Renzo comes home late after a meeting and finds Camilla on the couch deep in thought. She lets him know she has been connecting the dots between the postcard and the merengue instructor. She goes off to bed but finds a surprise on the way.

Alessandro explains some things about the characters in his books and tells a story about when he won the Strega award. The Strega Award is the most important Italian literary award. It gets its name from one of its creators, the owner of the company producing Strega, a brand of an amaro (after-dinner, digestive bitters).

At the hotel where Aragona stays, he tries to find out who the new housekeeping person is. Down at the police station, there is news concerning the prostitute Varricchio says he spent time with the night of the murder.

Italy is known for its pasta. The Zampino family was able to give new life to an old flour mill from the sixteen hundreds and turn it into a productive plant where they produce pasta keeping to traditional methods.

Leaving the outskirts of Rome, Annalena goes to a middle-class neighborhood where she meets professor and writer, Alessandro Piperno. He talks about what it was like growing up there and about his identity as a writer.