Jang Deuk Cheon is the head of the crime squad. At home, he is kind and friendly and is a father figure to his daughter. He meets human clones and gets involved in a surprising case. A fight broke out between human clones. one day his child was kidnapped by Seunghoon (clone) with Seunghoon's manipulative abilities he involved his older brother, Seongjun, as the kidnapper of the detective Jang's child because their faces were exactly the same you see the news on tv about the kidnapping