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.

Pasolini talks about the Italian language and how it has been transformed over the years.

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

Federica demonstrates the final stages of making the Colomba. Once ready, she cuts it open to show us what it looks like on the inside, with its particular consistency.

Calogiuri has become a marshal. At Imma's house, the morning is going fairly normally, when a phone call from Diana comes. It can't be good.

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

Federica continues working on the dough, adding various ingredients, and making sure that the dough "meshes" without breaking apart. Finally she will shape the dough into the form of a dove.

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.

Journalist Annalena Benini introduces us to different writers from different places in Italy, beginning with Rome, where she interviews Chiara Gamberale, a novelist.

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

Pasolini talks about his first book of poetry and what he realized about his country when it was published in 1942. He explains why reviewers wouldn't touch it.

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.

If you have ever wondered how to make the traditional Easter bread called la Colomba (the dove), in the shape of a dove, the head of a Turin pastry shop invites us into his laboratory-kitchen where Federica gives us detailed instructions as she demonstrates the first phase. Key is il lievito madre (sourdough starter).

Palma and the team have just forty-eight hours to find Varicchio, the father of the two victims. Meanwhile, Palma has to buy furniture, Lojacono meets up with the DA, and Alex comes home late to an angry father.

Imma is having a relaxing moment at home, lost in thought, when the doorbell rings, and she gets curious. Valentina is at a cooking demonstration.