Camilla is still convinced there is a mouse in the house and Renzo humors her. At school, there is some tension, but Marchesi has some information for Camilla and her mood changes. Berardi also obtains, almost by accident, some intriguing information, that could be pertinent to the case.

Annalena meets up with Paolo Giordano who talks about the trauma of moving from Turin to Rome. Giordano's first novel, La solitudine dei numeri primi (the solitude of prime numbers) from 2008 was made into a popular film of the same name in 2010.

Marinella is shocked to hear on the news that a father might have killed his own children and she calls her father for some reassurance. The team goes to the funeral of Grazia and Biagio, in order to observe the behaviors of the various suspects and witnesses.

In chapter. 7, Armando describes how, to him, his images represent vegetation, woodlands, trees, and flowers.

The detective's mother is not able to provide any useful information to the police. Renzo finds a small object near the front entrance of their apartment building. He also gets a postcard from New York, causing not a little stress to Camilla.

At the police station the team discusses the case and then they disperse. Lojacono sets up a date with Laura, Palma goes to his new place, Pisanelli goes to spy on his friend the monk, and Ottavia is working late at home.

Imma is troubled, both by seeing Calogiuri again and finding a new dead body. She looks around the apartment and goes to see the seamstress who had found the body.

In this segment, describing chapters 3 - 6, we can imagine storms, volcanoes, oceans, and mountains in Armando's photographs.

The deepest part of the Mediterranean is located between Apulia and Greece. There, conditions are such that there is plenty of food for predators. With the "Researcher for a Day" program, the association gets precious help searching for cetaceans in these waters.

Camilla can't rest until she has reported her suspicions to Berardi, and goes down to the police station before school.

Chiara Gamberale talks about how and where she writes, and how her life has changed now that she has a little girl.

At police headquarters, Guida is settling in to work on his puzzles, but someone with a familiar face walks in.

Armando begins describing the structure of his book, and talks about how he envisions a kind of journey, beginning in the far reaches of the universe, down to the tiny details of a flower.

The founder of the Jonian Dolphin Conservation describes one of its projects: Ketos, Euro-Mediterranean center of the sea and cetaceans, based in Taranto.

Camilla ventures up to Doctor Mattioli's office to see if the nurse is there and to ask him about hallucinations. At the police station, Piccolo is making an effort to make Ferrari like him.