A setting like a "dimensionality reduction experiment": Our world is actually a "sandbox" projected by high dimensions. As long as high-dimensional creatures sneeze (killing), sleepwalk (weird resurgence), and play games (weird rules), corresponding horrific events will occur in our reality. Su Mian is one of the very few psychics who can actively "answer" the dimensionality reduction signal. He has established a private detective company to specialize in deciphering such strange stories. To solve the case, two lines need to be taken into consideration: 1) Deducing the logic of this trick in the low-dimensional world (for example, the "monitoring frame skipping" is because he scratched an itch in the three-dimensional world) 2) Negotiating with the high-dimensional creature to make it "stop" or modify the rules of the ghost story. The main stage is at the crime scene, where high-dimensional creatures participate in the interaction in the form of projections, forming an absurd sense of humor.