Alcaras updates Marissa on the state of the case, and a lot has already been turned upside down. Carrie, whose real name is Josie, and Kyle rented a house by the lake, where Milo was kept. The house was abandoned, as was the car. All the evidence suggests the child was being well cared for, but a body was found in the lake. It belongs to an adult, apparently Kyle. According to the police, he was executed with a gunshot to the back of the head. The initial conclusion is blunt: Carrie/Josie eliminated her own accomplice and is now acting alone.

Inside the house, the police find one of Milo’s frog costumes. The detail is devastating. That outfit had disappeared before Ana was hired, before Jenny and Marissa even knew each other. As Marissa herself realizes, “this changes everything.” The costume proves that Carrie/Josie was targeting Milo long before she infiltrated the family’s life through Jenny.

The atmosphere in the room shifts instantly. Brian, Colin, Lia, and Peter all become suspects. Peter recalls that the costume “went missing” during a family weekend trip, and that Milo was deeply upset when they couldn’t find it. Everyone tries to rationalize, to offer explanations, to soften the implications. Everyone except Marissa. She understands that only the people in that room were on that trip. Which means someone handed the costume over to Carrie/Josie.

Alone together, the five of them attempt to reconstruct, step by step, what they did that weekend. Peter directs suspicion toward Lia, suggesting that, as a former drug addict, she might still be using. Lia denies it. Peter pushes harder. Colin steps in, fiercely defending her. Tension escalates.

That evening, Marissa and Peter prepare for a televised interview. Peter receives a message and steps away. Marissa remembers that the three of them — Peter, Colin, and Lia — went out that night, precisely when the frog costume disappeared. When she asks Peter about the message, the argument is interrupted by the arrival of Milo’s birthday cake. The four continue fighting. Exhausted, Marissa asks for silence. She says she wants to clean the coffee and prefers to be alone. It is Milo’s birthday — and no one seems to remember it except her.

Jenny arrives to support Marissa before the interview. At home, she argues with Richie, who wants to know when his “shift” is over. Jenny explodes. He has free hours, autonomy, and downtime. She, even without her child, is still responsible for the house, the bills, and the job. And yet she feels guilty, apologizes, and promises to “do better.” The cycle is familiar.

With Marissa, Jenny also feels guilty when she learns that Carrie/Josie killed Kyle. Marissa cuts her off: the nanny wanted Milo long before she was hired. This is not Jenny’s fault. For the first time, Jenny hears it clearly.

Almost simultaneously, Marissa uncovers yet another lie — one that is quickly resolved before becoming a new source of suspicion. The detail matters for only one reason: it suggests that Colin and Lia spent several hours alone that weekend.

Peter breaks down, missing his son. When he gets home, he finds Jenny alone, cleaning the couch. She apologizes again for having hired Carrie/Josie. Peter says he can’t forgive her. It’s a brutal — and deeply hypocritical — statement. Then, with false politeness, he asks Jenny to leave so he can “take care of” his wife. Marissa reacts badly.

Peter’s pathology becomes clear: he needs to be the caretaker. He goes to his brother’s house and once again dictates what Brian should eat, do, and feel. They revisit the accident that left Brian disabled. And then the truth emerges: it was Peter who caused the accident, allowing the blame to fall on Lia — destroying her life and shaping the family’s entire dysfunctional dynamic.

Marissa discovers that Colin and Lia have been secretly dating for months. In the confrontation that follows, Colin accuses Peter of orchestrating every crisis to occupy the role of indispensable caretaker, compensating for the absence of his own parents. At the same time, Brian uncovers something even crueler: Peter has not been trying to help him. On the contrary, he has been quietly sabotaging the surgery that could restore Brian’s independence. And even when confronted with proof, Peter continues to gaslight Lia, accusing her of stealing medication she clearly did not take.

The airing of grievances continues, even with the press waiting outside. Decades of gaslighting and resentment are not interrupted by pleas — or by the doorbell. They only stop when Marissa finally explodes, breaks down, and is heard. Without filters, she says what she has avoided for years: the marriage is over. She is better off when Peter is far away.

Then the phone rings.

The police station reports that there is a child there.