Ha Eun Joong, a detective at Gangnam Police station. He became a detective to try to understand his dad better, who was an ex-detective. However, he discovers that his father, Myung Geun, actually kidnapped him when he was a child. Myung Geun had lost his own son in a building collapse, and as revenge against the man responsible, Jang Tae Ha, he abducted Tae Ha's son and raised him as his own.
