The investigations are only at the beginning and the autopsy results are not yet available. For now it emerges that there are no signs of struggle and that the girl was caught by surprise. Meanwhile, at home, Giuseppe and Laura rediscover their complicity.

While the little girl hovers between life and death in the hospital, the forensic police and investigators begin to dig into the past of the young woman found dead. A regular residence permit, jobs as a domestic worker in upscale neighborhoods, rent paid in cash and too many unanswered questions.

The circle is tightening and the police are investigating two possible profiles: a lawyer and an engineer. Between jokes and internal dynamics at the police station, two officers are assigned to interrogate engineer Senatore and two others go to Nubila.

Ottavia and Romano speak with Senatore who tells about his ambiguous relationship with Lara, described as an honest, reserved woman full of grace. After rejecting his advances, Lara decides to leave suddenly and when he is told that she was pregnant, the man appears genuinely surprised.

Mrs. Nubila retraces what she knows about Lara, the young woman welcomed with almost filial affection into her family. However, the fragile balance of her life is shattered by her husband's sudden return. Di Nardo and Lojacono reveal to her an aspect of Lara's story that the woman was unaware of.

Between interrogations, conflicting leads and multiplying suspicions, secrets emerge linked to the victim and their private life. Meanwhile Romano faces the weight of his own guilt and the violence he committed but is called back to a sense of responsibility by the group.

Rosaria appears very impressed by Alex's new house and, between one compliment and another, updates her partner on the latest developments in the investigation. Meanwhile Lojacono goes to the restaurant to see Letizia, who welcomes him by offering a rich and inviting selection of typical Neapolitan dishes.

A mysterious phone call casts Lojacono into shadow: a stranger from Agrigento hints at an unpaid mortgage and lets slip a veiled threat.
Meanwhile, Romano focuses all his anguish on little Giorgia. Between fear and hope, the doctors try to reassure him about the child's condition.

While Romano talks with the doctor, he meets Giorgia at the hospital, who is there to assist her hospitalized mother. Meanwhile, at the police station, new clues emerge about a suspect linked to a criminal clan, while Laura and Giuseppe share moments of complicity that lighten the tension of the investigation.

Lojacono pursues and arrests Donato Cuocolo. After attempting to flee and threatening the officers with a brick, he is stopped by Alex Di Nardo. At the police station, the investigators put him under pressure: he risks many years in prison, but he can face a lighter charge if he cooperates.

The police interrogate Cuocolo after the arrest and he tells of having met Lara on the Mergellina waterfront and of having had a casual relationship with her. However, he denies being the father of the child and claims to have an alibi for the night of the murder, suggesting that the culprit could be someone in love with her who was not reciprocated.

The investigation into Lara's death continues, while the police conclude the interrogation of the suspect. Meanwhile Aragona, in order to go out with Irina, promises her that he will find the culprit.

At the police station, lawyer Nubila shows up to offer his financial support for Lara's daughter's medical care, declaring that he has no financial difficulties. During the meeting, he receives a phone call from his wife, who asks for updates on Lara's husband, currently among the main suspects.

Lojacono says goodbye to his daughter at the ferry when he gets a phone call from Laura. Later, he and Romano check out The Blue Moon, where Nazar Petrovic works as a bouncer. They convince him to answer some questions at the police car. Petrovic is worried about losing his job.

Nazar Petrovic, suspected of Lara's murder, is interrogated in the patrol car by agents Lojacono and Romano. The man denies any culpability, tells his story, and provides an alibi that sounds weak. The agents let him go, but Petrovic remains under police surveillance.