Vitali appears before the judge requesting a conviction for Iannuzzi, but both Imma and Calogiuri are still convinced that he is covering for someone.

After the news about Iannuzzi's illness, Vitali asks Imma to take care of the case. Calogiuri shares an excellent insight about the case with Imma and together they continue the investigation.

Mileo is called into Imma's again and this time the truth comes out about his land. Meanwhile, Calogiuri has managed to find Iannuzzi.

According to Imma, Don Mariano had convinced Iannuzzi to tell her about the trips he had made to bury toxic waste. Samuele and Valentina have a conversation about the cooking course he has been invited to participate in. Samuel also gets something off his chest with Deputy Prosecutor Tataranni.

Imma talks about personal things with Samuele and when she returns to the office, Diana updates her on what she has discovered and found about the case.

Vitali interrupts his meeting when Romaniello shows up at the office and makes a suggestion for getting rid of some dead weight in the department.

Imma searches for information about the earthquake of the 1980s and among old newspaper articles, Antonio Scaglione's name appears. She decides to go visit him.

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 questions about his past and a certain name comes up. Later, Imma goes to see an old friend of her mother's, to try to make sense of what she has learned.

Imma receives a package containing Don Mariano's tablet. The note inside says that the tablet contains all the evidence that Don Mariano had collected.

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 in the office. 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. At a certain point, he says the same thing twice, but switches to addressing her informally. Details matter sometimes!

Imma rushes to join her husband and daughter on a small terrace they have likely rented, to watch the Bruna festival, and in that instant, she receives an important text message. Meanwhile, Valentina goes to greet Samuel, who confesses a secret.

Doctor Vitali is standing on the balcony next to the one where Imma and her husband are watching the procession, and he takes the opportunity to talk about work.

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.