Wu Young-min, a former policeman who inadvertently brought about the death of his partner during a face off with a criminal, has quit the police force and now heads up security at Dreampia Department Store. Wu comes across his former rival and co-worker Ha Hyunsu, who now heads the investigation into the recent murders at the Department store. A mysterious woman Lee Ji-Hyun is also found lingering around the crime scenes. Without wishing it, Wu is drawn further into the deep mystery surrounding the murders.
Forget the ghosts who startle you, those that appear mysteriously behind you, those that go bump in the night, what about those you have always know are there?