The burned car belongs to a former police officer who was fired because of an incident involving a missing child. The victim inside the car is identified as the officer's wife, who was thought to have disappeared years ago. As Sang-Gil and Eun-Young dive deeper into the case, they uncover a web of corruption and deceit within the police department. They realize that the officer's dismissal was not for the reasons stated and that there may be a connection to the missing child case. As they follow the clues, they become targets themselves and must race against time to solve the case before they become the next victims. The movie is a gripping thriller that keeps the audience guessing until the very end.