Mo Mo wakes up and finds himself lying on the autopsy table, with forensic doctor He Qing standing next to him holding a knife. He remembered that his name was Shen Mu, he was a criminal police officer, and he was investigating a disappearance case. But this world is not his original world. The supernatural events here have rules, logic, and operators behind them. He was transferred to the Mystery Bureau, and on his first day he received a case: for seven consecutive days in a community, someone jumped from the sixteenth floor every night. Surveillance shows that they danced by themselves, with peaceful expressions. Shen Mo used the rule parser to look at it, and it only showed one line: 'Don't trust people below the sixteenth floor. ' He looked up and saw He Qing standing by the window on the sixteenth floor, smiling at him.