A female cop, Nazli, joins the homicide department as a partner to Murat. Two partners, who cannot even accept each other, quickly find themselves in a murder investigation of a 17-year-old student.
Nazli and other cops in the bureau have a clash because of her complaint petition about Murat. Meanwhile Senol gets his gun stolen to a Russian prostitute, Lena.
Murat and Nazli investigate the homicide of a music teacher. Her complicated story and second life make things harder. Lena issue turns into a crisis among the cops.
Murat and Nazli find themselves in a mafia murder. The surprise that awaits Nazli in the homicide turns her life upside down. Meanwhile Murat resorts to all kinds of ways to get away from Nazli's complaint.
In order to solve the series of brutal murders, Nazli risks her life without thinking. Murat has weird dreams about Nazli. Lena pulls Senol and Murat into more dirt. Kemal is severely wounded in the bomb attack.
Murat organizes a dangerous operation with Senol because of Aydan's abduction. Kemal dies. Nazli and Commissioner Remzi take action to solve the newly arrived nursing home murder file.
Crew investigates chef and apartment super homicides. Murat escapes from "dirty cop" investigation in the bureau. He also tries to figure out correct moves among the dark men. Nazli doesn't forgive Serdar who cheats on her.
Murat, Nazli and Senol investigate the homicides that committed in a football club and a mansion. The truth about Lena reveals but she is prepared for this. Nazli can't get over being cheated.
Murat and Senol are in trouble because of the considerable amount of money that they confiscated. To solve the issue, they persuade an ex-forger to complete the money that they burned previously.
In the final episode of the series, Nazli and Commissioner Remzi investigate the magician case. Nazli cooperates with a new cop, Emre. Murat and Senol come up against Ersin in the last showdown.
