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.

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

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.