Episode list

The murder of a young woman who has appeared mutilated and with a poem hidden in her mouth, causes the visceral inspector Sancho to begin an investigation, just when he had requested the transfer from Valladolid. Little does he know that Augusto, the man he is looking for, an enigmatic young man with an impeccable appearance, is at that moment looking for a woman who seems to be linked to his dark past.

Armando Lopategui, alias "Carapocha", a psychologist who is an expert in multiple murderers, appears in Valladolid to help Inspector Sancho in his investigations. Augusto has already found the woman he was looking for: only he knows what he wants from her. For his part, Sancho has to deal with two problems: a mishap that his mother suffers and the difficult relationship with Martina, the psycho linguist.

The appearance of a new corpse causes unrest in the city. There is no longer a doubt: a monster is loose in Valladolid. A murderer who has had a sexual encounter with Violeta, a young woman who is unaware of the danger she is in. Meanwhile, a clue given to them by the psycho linguist Martina causes Sancho and Carapocha to step on Augusto's heels for the first time.

Augusto has not committed a new crime for two weeks. Carapocha believes that the murderer has fulfilled his objective and will not kill again. That's why Sancho decides to go to his new destination in Madrid. Saying goodbye to his colleagues and especially Martina is very complicated for him. Neither Sancho nor "Carapocha" suspect that, at that moment, Augusto has a Machiavellian plan.

After the last death and Augusto escaping him once again, Sancho begins a descent into hell. However, a clue that the last victim left before dying spurs the inspector's investigation. Carapocha conspires to "stop" the murderer. Oblivious to these threats, Augusto feels safe. Although he will soon discover that his peace of mind is going to be blown up.

Sancho has been removed from the case, although with the complicity of his team, the inspector does not give up and continues fighting to catch Augusto. A new clue reveals information that turns the investigation upside down. For his part, Carapocha has an ace up his sleeve to get his hands on Augusto and put an end to him. She will have to hurry, because Augusto plans to disappear forever.