Episode 5 of The Law According to Lidia Poet Season 3 opens with Lidia trapped in a nightmare where her father sends her to her execution for being a female lawyer. The present unfolds with Enrico suing the newspaper editor for defamation, demanding a retraction and an apology. However, his anger explodes when Lidia reveals that her affair with Fourneau is not just a rumor. He reminds her that he does everything for her, yet she only thinks about herself without considering the consequences. In a fit of rage, he kicks her out of the house.
Lidia moves to an inn and asks Jacopo to delve into Fontana's past. A former classmate, Giulio Bonomo, spots her and begs for her help. His client, Berto Tonelli, a 14-year-old boy, has been falsely accused of killing his teacher, Borromei. The principal found him with the teacher's corpse and blood on his hands. Classmates claim that the teacher harshly punished Berto, and Prosecutor Cantamessa thinks this is enough reason for motive.
Fourneau shows up and confesses that he loves Lidia and wants to marry her. However, she doesn't feel the same way and they break up for good. Teresa believes she's pregnant based on a dream she had, and Conseulo is awkward around her. Enrico is still upset with Lidia for publicly embarrassing him. Jacopo insists that his newspaper will support Lidia, which upsets Conseulo. He tells Teresa to handle her while he shares his strategy based on Lidia's letter. Their plan is to dig up dirt on Fontana so that he doesn't appear as a victim.
Meanwhile, Lidia focuses on Berto, who happened to find the body. He claims that Borromei never beat anyone but only yelled at him. Borromei was hit on the back of the head, but Berto isn't tall enough for the action. The principal shares that Borromei was a new teacher with anachronistic views on teaching and was liked by students. Lidia's attention falls on a drawing made by a student for him.
Jacopo encounters Lidia and hands her a letter in which Grazia expresses deep remorse for her selfishness. He also informs her that he has discovered a sailor based in Turin, Edoardo Guarino, who was stationed at the same posting as Fontana. He mentions the rumors of an affair and she reveals that she has ended her relationship with Fourneau. Meanwhile, Judge Davanzati confronts Fourneau, demanding an explanation, to which he lies and denies any involvement with Lidia.
Returning to the case, Lidia questions Dante, the classmate who drew the picture. The drawing depicts a giant beating Borromei, as if Dante intended to warn his teacher. The giant resembles Dante's father, Ernesto, but fearing his father's disapproval, he claims the giant is Calcagno. Calcagno owns a spinning mill where local children, including Dante and Berto, work. Ernesto even reveals that Berto had once hit Dante. Lidia then questions Calcagno, who does not resemble the giant in the drawing. He hated Borromei for opposing children working, even if it was for pay. They had argued over it, but Calcagno was in Como on the day of the murder.
In prison, Grazia keeps watch while Virginia digs through the wall near the cell window. There is not enough time, but Virginia reasons that at least Grazia can say she tried. If she is convicted for life, she won't ever see her daughter again.
Jacopo and Enrico question Guarino, who reveals that Fontana tormented his juniors. He never fought in combat and actually shot himself, leading to his medal and discharge. He spent most of his time with young local girls and even bought an underage Eritrean girl named Amira. Enrico is distracted as Teresa rushes ahead and has a crib built due to her recent vomiting.
Lidia was brooding over her fight with Dante when Berto chimed in, revealing that he had felt uneasy about the situation. Apparently, Borromei had perceived potential in Dante and wanted to send him to an exclusive school. However, Ernesto's refusal had thwarted those plans. Lidia realized that Ernesto had orchestrated the teacher's demise to keep Dante close and working for him. She ran to Rosa, Dante's wife, and implored her to do what was right. As Ernesto appeared, ready to attack, Rosa managed to hold him off with a knife. The women fled, and Rosa testified, allowing Berto to walk free.
Lidia then made amends with Grazia. They acknowledged their place at the fringes of society but promised to support each other. Lidia, who had been selfish and wanted to prevent Grazia's marriage, assured her that they would remain friends and that Grazia would be okay, even if she faced a life sentence. Grazia smiled, but it seemed her acquiescence was merely a facade. She joined Virginia in digging through the wall.
That night, Jacopo revealed that he had located Fontana's family villa in Avigliana. He and Enrico planned to visit there to inquire about Amira. Lidia tried to inquire about Consuelo, who was now in Milan. A guilt-ridden Jacopo exploded, revealing that he didn't love her as she did him. He brought up Lidia's breakup and insisted they couldn't deny their feelings for each other. Lidia found it pointless but eventually hooked up with him. Before he left, he asked her to accompany him to Avigliana. Alone, she discovered Teresa's letter. Consuelo was pregnant but staying away because she believed Jacopo was in love with Lidia. Teresa begged Lidia to stay away so that Consuelo and Jacopo could be happy.
The next morning, Lidia joined the excursion. Enrico hadn't forgiven her, and she gave a perplexed Jacopo the cold shoulder. At the abandoned villa, they found a photo of Amira. Jacopo tried to speak with Lidia when Enrico discovered something shocking.
