Memento Mori

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 investigation. 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 psycholinguist.

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 psycholinguist 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. He will have to hurry, because Augusto plans to disappear forever...

Although he's suspended from work and pay, Sancho continues to track Augusto, who has fled with Erika to Trieste, where he will continue his criminal plan. Meanwhile, Carapocha will do everything possible to save his daughter Erika from Augusto's clutches.

The team led by Carmen tries to gather clues that will lead them to Augusto, who has killed again. Michelson sends Sancho to Trieste. Carapocha tries to locate Orestes so he can lead him to Augusto. He doesn't know that his daughter is no longer with him.

Erika and Carapocha have reunited, but the daughter refuses to help her father hunt down Augustus. So Carapocha goes to Valladolid with her to meet with Orestes. Meanwhile, Sancho receives a clue: he now knows where Augustus is hiding in Trieste.

Augusto escapes from Sancho again. Erika meets with Orestes, although the meeting doesn't end well for either of them. Carapocha remains held captive by Carmen and her team. Neither of them knows that Augusto has made a decision that will hasten the outcome.

Orestes has set a trap for Erika while she waits for her brother. His plan is to destroy Carapocha with his brother's help. Meanwhile, Inspector Sancho has returned to Valladolid to intercept Augusto and save Erika and Carapocha's lives.

After a loss that consumes him, Augusto turns his anger into a plan for revenge. He will settle scores before continuing his work, a legacy of verses, songs, and murders. Sancho is unaware that his actions will bring tragic personal consequences. Erika receives an unexpected visit revealing a conspiracy behind her mother's death.

Augusto and Erika's meeting leaves unfinished business. Augusto heads to Madrid to start his dark plan. Erika travels to Valladolid to find her father's black notebook. Sancho asks her to help them catch Augusto. Erika reveals he's in Madrid.

After escaping the police cordon, Augusto leaves a trail of bodies across the country. Michelson dissolves the Interpol team. Sancho, left without a mission, remains obsessed with catching him. Investigating on his own, Sancho finds a hidden pattern in the murders and deduces the next victim will be in Valladolid.

The scheme worked and Augusto was arrested. At the station, the interrogation begins. In the first round, Sancho wins, but in the second, Augusto is cunning, claiming all evidence points to Orestes. They decide to release and watch him, but he escapes. Then Erika tells Sancho Augusto wants to meet her. Is it an ambush?