Ilgaz put forward the first theory in the well-murders, which remain a mystery, by saying that "the killer creates a family for himself". Ceylin does not hesitate to research her own thesis by side ways. With the mysterious death of his sister Neva and the murderer not being found, Pars is going downhill psychologically with each passing hour. The end of this slope will lead him to make a choice between his profession and his feelings, what will Pars' choice be? When the identities of all those who were removed from the well became clear, the investigations carried out became even clearer. However, the new suspicions that arise force Ilgaz and Eren to remain vigilant. Eventually they will have to be dragged into a choice they don't want. Ilgaz and Ceylin are working hard in their own way to untie the difficult event knot; However, at the end of the day, with the development that will shake everyone, they have to understand that nothing will be the same as before.

Ceylin has been the target of the well killer. She finds himself in the same place as other abducted people. Ilgaz is not yet aware of this. Ilgaz, who is frantically struggling to catch a vulnerability of the killer, is devastated by the fear of losing Ceylin. Chief Prosecutor Pars has found himself on a dark path to find his sister's killer as soon as possible. Will Ilgaz, Eren and Derya, who see his drift very clearly, be able to calmly restrain Pars' pain? As the new "target family" is revealed, everyone who is locked in, especially Ceylin, has to fight the psychological, manipulative games of the killer. They all have the same question on their minds: Why do we and what does the killer want from us? While everyone is working hard to find Ceylin, Ilgaz is ready to show thousands of times this effort... Like Pars, he has been shot in the heart and has to move very fast in the case. In this way, he will not hesitate to confront even his most loved ones.

Ilgaz mobilized all his might to save Ceylin from the place where she was closed as soon as possible. Ceylin, on the other hand, struggles to survive with those inside. Moreover, now someone she knows, maybe Burak, who will be an ally of Ceylin, has entered. As clues about the well-killer keep coming, the sleeping enemy is in a new collaboration to join the case. At the end of the road, trying to catch up with his old reputation. Yekta's plan will surprise everyone. The case has engulfed everyone's personal lives like a whirlpool. His team, which has been giving everything to the case without sleep and without energy for days, is waiting for unclear evidence to prove the identity of the killer. Ilgaz, who lost his compass without Ceylin, is in search of solid evidence that will completely change the fate of the case with his predictions and intuition. Will the paths he believes have found enable him to find Ceylin and allow the duo to take a deep breath?

Ilgaz has revealed the identity of the psychopath that everyone is looking for. Now is the time to find the necessary evidence and ensure justice. Ceylin, on the one hand, is trying to get rid of the traces of the trauma she experienced and, on the other hand, she is after the answer to a question that haunts her mind, who killed the taxi driver inside? Yekta, who is one step closer to regaining her former glory days and getting stronger, has annoyed the team enough by getting involved in the case. However, while Yekta is dreaming of reaching her goal, in fact, there are other plans that life has prepared for all of them; Yekta's plan will change direction with a sharp bend. Relieved by the joy of finding Ceylin and being side by side again, Ilgaz awaits an unexpected choice in the finale; This choice puts Ilgaz on a fine line between life and death... This sudden decision he has to make will radically change his life and start a great struggle in which the sides become sharper.