Thanks to Bernard for sharing this video clip
This video was captured by CCTV installed in each Karaoke Room. When the video was flipping through each room, an uninvited guest appeared in the video for split second. One of the staff heard a scary voice while passing by that room and request one of the staff to play back the video. They noticed something unusual and submitted this video to a TV program for study. Further check made by the crew, the staff revealed that a girl had committed suicide in that room several months ago.