An inspector who decided to live as a watchdog for the rest of his life after being betrayed by a trusted senior. A young police officer who lives suspecting that his father, who was a police officer, may have killed his mother. A lawyer who was threatened with death. A psychological thriller in which three men and women gather back together due to the kidnapping of the group president's son becomes a corruption investigation team inside the police, and dig into the reality of power. (Source: Korean = cjenm.com || Translation = MyDramaList)