Agâh Beyoglu is upset by his initial diagnosis of Alzheimer. Agâh recognizes that forgotten is an opportunity to commit a murder that he has planned for years but is constantly delaying.

The murder that Agâh had committed is the first ring of a chain of murders. Nevra finds a message on victim that her name is written. She quits resigning from her job.

An important common point between Nevra's with Agâh, who has been lost in an inquiry filled with dead ends, will emerge.

Nevra will have to face her childhood, which she has been running for a long time when she goes to Kambura, which is the only link between the murders.

Murders committed by Agâh will drag Nevra and homicide detectives to Kambura, but what they will learn there will raise new questions rather than finding the answers.

While Agâh is adding new ones to the murders he committed, the dark side of his old friend Cemil begins to emerge slowly.

Agâh tries hard not to reveal the secrets he hides from everyone. But there is something he doesn’t even know; his personality, which changes over time, cause him to kill random people.

As the mysterious “Dog Killer” becomes a phenomenon, Agâh goes to a change in his plans and decides to take the biggest step first.

Nevra now believes she has found the motivation for the murders. So she continues her investigation in Kambura to stop the killer.

What she learned in Kambura pushes Nevra to face her past. She continues to search for new in Kambura.

Agâh started to forget the details of the murders he committed, while Nevra has to rely on her memory if she wants to solve the case.

As everyone comes to an end in their story, it becomes impossible to avoid confronting the facts. Surprise collaborations will cause major changes in Agâh and Nevra's life.