The photo showing Lucia's distinctive birthmark is a key plot element introduced during Rebecca's emotional confrontation with Lucia. It appears to be irrefutable proof of Rebecca's claim to be Lucia's real mother, which challenges the idea that Alisa is the loving adoptive parent. This moment raises the possibility that Alisa might actually be the kidnapper, adding a fresh and exciting twist to the story. However, the episode later reveals that the photo is fake, which undermines the emotional impact and pulls the narrative back to a more predictable path.

Episode 3 reveals Rebecca's true identity through a series of flashbacks set nine months to three weeks before Lucia's kidnapping. Rebecca is shown living in France under the name Nina, interacting with a woman named Delphine who recognizes her and asks about her husband Nicolas and her daughters. Rebecca claims Nicolas died four years ago and that her daughters are at boarding school. She also acquires a farmhouse that later becomes her hideout and tries to contact Milan Matkovic, indicating her desperate search for her daughter. These flashbacks add layers to Rebecca's character and her connection to Lucia, raising questions about her role in the kidnapping and her true intentions.

Episode 3 builds on the tension between Alisa and Selma, which had been slowly developing in the first two episodes. This episode marks a turning point where the story shifts to a more mysterious and emotionally charged direction. The interactions between Alisa and Selma become more complex, with Selma's suspicions about Elisa (another character) adding to the intrigue. The episode uses this dynamic to deepen the narrative and keep viewers questioning the characters' motives and alliances.

Elisa's role in Episode 3 is significant as the episode explores her past and her possible involvement in Lucia's kidnapping. The storyline suggests that Elisa could have been the real kidnapper all along, a theory supported by Selma's suspicions. Elisa's character is portrayed with complexity, and her actions and motivations are central to the unfolding mystery. The episode uses her storyline to create suspense and keep viewers engaged with the core mystery of who took Lucia and why.

Episode 3 uses a non-linear timeline, with flashbacks to nine months, seven months, four months, and three weeks before Lucia's abduction. These flashbacks provide context and background, showing Rebecca's movements and actions as she searches for her daughter. The timeline reveals Rebecca's acquisition of the farmhouse, her interactions with various people, and her efforts to find Milan Matkovic. This structure helps build suspense and gradually uncovers the layers of the story, giving viewers insight into the events that led to the kidnapping.