On the surface, they are just a few ordinary people. No one would have thought that they are members of a mysterious organization who make a living by researching and identifying supernatural events. Unexpectedly, the closer they get to the truth, the more terrifying they become. They have to force themselves to improve and resist it. Humanity, ghosts, and animals cannot coexist on the same parallel line. In a technologically advanced society, some things are quietly distorting and slowly changing unknowingly. When you look back in the middle of the night, maybe the next person you see will be you.