Do Jung-woo, the leader of a special task force in the Seoul Metropolitan Police Agency, ends up investigating a series of mysterious murders. Together with his team, which includes hot-headed Officer Gong Hye-won and Jamie, a detective on loan from the FBI, they uncover clues that these crimes are somehow related to a tragic event that happened 28 years ago in a village called "White Night".
Someone is killing people related to that village. Who? And why now?