According to Imma, Don Mariano had convinced Iannuzzi to tell her about the trips he made to bury toxic waste. But there were other things that Don Mariano had done that concerned Samuel.

Imma makes sure that Samuele won't make Valentina suffer, and when she returns to the office, Diana updates her on what she has discovered and found about the case. Imma lets her know that she is aware of her personal situation and is on her side.

Vitali interrupts his appointment when Romaniello shows up at the office and, without beating around the bush, asks him to consider the possibility of Imma being transferred.

Imma goes to search for information about the earthquake of the 1980s and among the newspaper articles, Antonio Scaglione's name appears. She therefore decides to go visit him and have him tell her about some things.

Imma presents herself to Scaglione and tells him everything she knows, what she has discovered and what she suspects about the contaminated lands and Don Mariano's death. She doesn't have proof of what she's saying yet, but she has no intention of stopping.

During the chat with Scaglione, Imma has some doubts while he recounts who he met during his career path. Right after, Imma goes to look for Porzia to see if she can clarify her uncertainties.

Imma receives a package containing Don Mariano's tablet. The note accompanying it says that inside are all the evidence that Don Mariano had collected. The sender is overcome with guilt and when Calogiuri reaches him, it's already too late.

Imma summarizes with Calogiuri how things went regarding Don Mariano's death and, reconstructing the events, decides to send some notices to those involved.

The day of the Bruna festival has arrived, but Imma and Calogiuri are finishing up their work. Once finished, Calogiuri expresses to Imma everything he thinks and feels, much to Imma's surprise, who thought he was a man of few words.

Imma rushes to join her husband and daughter on the small terrace to watch the Bruna festival, and at that moment she receives a confirmation message. Meanwhile, Valentina goes to greet Samuel who confesses a secret.

Doctor Vitali is standing next to Imma and her husband's small terrace and doesn't miss the opportunity to tell her what he thinks of her before everyone enjoys the party.

Comedian and actor Caterina Guzzanti is a guest at a middle school in Afragola, in the province of Naples, a school named after Rita Levi Montalcini. Guzzanti meets with the students from the theater class for a lesson on the imagination, which has a lot of importance in her work but was also very important to the great researcher from Turin, Montalcini.

Rita Levi Montalcini talks about when she won the Nobel Prize in 1986. Her niece, Piera, tells the story from her point of view, and Paola Tarassi, a research student of hers, tells about studying with her after she had already won the Nobel.

Rita Levi Montalcini felt that imagination was the "secret sauce" of her research. And this encouraged her to turn to young people, who have plenty of imagination. She didn't hesitate to teach kids of junior high school age, which came as a surprise to some people, since she was a winner of the Nobel prize.

Rita Levi Montalcini dedicated a great part of her life to young people, especially young researchers, and though she had no children of her own, she felt that all kinds of young people were like sons and daughters to her.