In this last segment of "Nos bébés ont été échangés," you will discover how the two families are coping with their shocking revelation. Manon will meet her biological mother Létitia and become friends with Létitia's daughter Émilie in the process.

Soon after Claire and Harold move into their new Parisian apartment, strange things start to open. Their new neighbors explain that their new home may have been the scene of a murder. Claire believes it, but Harold remains skeptical. Will they be able to solve this mystery?

Claire and Harold invite their new neighbors for drinks to get acquainted and thank them for their help. As the evening unfolds, the conversation becomes strained and strange things start to happen. Claire and Harold are left with many unanswered questions.

Claire and Harold go to bed exhausted after a long day of moving in to their new apartment. While Harold succumbs to sleep, Claire is wide awake. She investigates some strange noises coming from the living room.

Claire is invited for a cup of tea at Solène's. She ignores Solène's warning about strange noises in her living room, but was this wise? Find out what happens in Claire's apartment upon her return.

Harold and Claire are having dinner when they hear some strange noises in their apartment again. Looking for a rational explanation, Harold asks their neighbors, Bastien and Solène. They seem to think that the apartment is haunted, but Harold has his doubts.

Claire's fears escalate and the situation becomes unbearable for her. She is convinced that the apartment is haunted, while her level-headed husband tries to remain calm, which infuriates her even more... and creates a wedge between them.

Harold is not convinced that the strange events in his and Claire's apartment mean that it's haunted. He has his own suspicions and is determined to find out the truth.

Thanks to Harold's shrewd powers of observation and determination, the haunted apartment mystery has been solved. Find out how the story arrives at a happy conclusion.

After her divorce, Sarah is raising her son Nino alone and is having trouble coping with his hostile behavior. Her financial situation doesn't allow for meat on the table more than twice a week. Nino proposes a dishonest solution, but his mother won't hear of it.

Sarah goes to work at the frozen food factory as usual, but her day is anything but ordinary. Temptation gets the best of her as her son's unethical suggestion echoes in her mind and drives her to do something she would never have imagined possible.

Sarah goes back to work feeling uneasy after having stolen a steak for her son the day before. Her colleague, whom she fancies, invites her for drinks. To her relief, he has no idea about the theft, so she is delighted to take him up on his offer.

Sarah invites her coworker Eddy over for dinner to meet her son Nino. After seeing Eddy kiss Sarah on his way out, Nino gets angry and lashes out at his mother.

Nino visits Eddy's workplace as arranged. However, things get out of control when Nino becomes confrontational. Meanwhile the manager arrives and is angry that a stranger was allowed on the company premises. Nino seems pleased with himself and decides to play a dirty trick on Eddy.

Nino comes home from Eddy and his mother's workplace and recounts the incident with Nicole, the manager who threw him out. He fails to mention that Eddy caught him stealing some merchandise.