The story is a Turkish-made detective, drama, adventure, comedy, thriller and action internet series, inspired by Emrah Serbes' novel of the same name, Çekiç ve Gül.

Behzat Ç returning to the police force after exile. The name Ercüment is replaced by a dark name called Haluk. There is no end to blood and killing in the city of Ankara. Behzat, who caused the last death, returns to detective work this time to stop the murders. With Akbaba, Hayalet, Harun next to him. The city of Ankara starts the war again."If no one hears you in this dark city, we will." -Behzat C.

Behzat Ç. is a police officer who graduated from the Police Academy in 1985 and works in the Murder Bureau. He remained as the superintendent due to the severance deductions he received during his service. Together with his team, he is trying to solve the murders in Ankara.—wikipedia

Behzat Ç. is the superintendent at the Homicide Bureau, and an expert on crimes against life. But years passed and Behzat Ç. and his team, as well as Ankara, has changed. The only thing that does not change is the bloody murders... Behzat Ç. and his team go after a serial killer who drowns Ankara with corpses. But they will encounter not just a murderer, but a strong family, bloody executions and deep connections. While the murders that are committed one after the other every day leave the team breathless, a force that grows underground and divides the city in two and even wants to kill the city will engulf the entire Murder Bureau.—blutv