In the upcoming episode of Un Si Grand Soleil, set to air on France 3, several key storylines progress. Marc resigns from the sorting center, telling Stéphanie that he is ending his trial period because he has found another job in an antique shop. He explains that he is helping a friend in need and apologizes, saying he would have preferred things to happen differently. Stéphanie is cold toward him and initially thinks Marc's resignation is due to Paloma, but he clarifies it is not his wife but an ex-coworker. He also mentions he is single, though Stéphanie refuses to believe him and asks him to leave. At Midi-Libre, Marc asks Paloma to sign a document related to the sorting center, explaining he does not want his name to be associated with it. He confesses to her that he fell in love with the director of the sorting center but was dumped, which is why he stayed undercover. Paloma questions why he did not tell her the truth earlier, and Marc believes it is too late to change things. Charles confesses to Eve at the veterinary clinic, explaining he did not intend to kill Eliott but had no choice because Eliott was kidnapping Toma. He asks for forgiveness and tells Eve she can kill him, but she decides to call the police. Charles is arrested in front of Eve and Manu, who tries to comfort her. At the police station, Charles is questioned by Yann, who asks if he admits to killing Eliott. Charles nods, and his lawyer explains he has agreed to cooperate with the police. Meanwhile, Boris prepares for an interview with Midi Libre, and Muriel tries to reassure him. Thierry arrives at their apartment and arrests Boris and Muriel as part of the investigation into Eliott Faure's murder. Eve tries to recover Toma but learns the boy will be taken in by the ASE when leaving the daycare, which will be a significant change for him. She confides in Manu, expressing confusion about how she missed the signs and wondering about Eliott's feelings when shot by his best friend. At the police station, Muriel is in the interrogation room with her lawyer, Margot. Boris is represented by Florent, who informs Catherine that her son has been arrested. Catherine, who believed her son had been cleared, finds the situation turning into harassment and relies on Florent to resolve it. She tells Laurine that her brother is under arrest, and the young woman admits Boris and Muriel chose to cover up Eliott's murder. At L. Cosmetics, Paloma waits for Boris, who is late and does not answer his phone. Berthier informs her that Boris had an unexpected situation and will not come, and later tells Saskia that Boris has been placed under arrest. At the police station, Boris admits he discovered the circumstances surrounding Eliott's death a few months ago. Yann asks why he did not go to the police, and Florent reminds him of the exception to the obligation to report: family immunity, which applies to both family members and spouses. Boris explains Muriel wanted to protect her son's image, and he could not denounce her.