They say there's one particularly famous "haunted hotel" meme. The reason it's haunted isn't because someone committed suicide there, but because the hotel was supposedly built on top of an old mass grave. People say you should never stay in the last room, and that you must knock on the door before entering... There are all kinds of "they say" stories about haunted hotels. But what's the actual evidence behind them? In the new season, the two hosts — Mo Junming and Lin Qianting — will once agai...