Lu Ming, a sleep tester at a haunted house, received a high-value order to investigate an old house that was said to be haunted. It is said that at 12 o'clock every night, a blurry white shadow will automatically appear in the mirror of the bedroom on the second floor. He moved in with his gear and the first two nights were uneventful. On the third night, when the clock struck 12 o'clock, he looked in the mirror on time - the mirror surface was clear and empty. He breathed a sigh of relief and reported into the headset: "The mirror is fine. The rumors are false." From the headset, his partner's horrified and distorted voice came: "But behind you... There is that white figure standing!"