An ordinary photography competition in a prestigious high school unexpectedly led to the mysterious death of Huang Haibin, a senior high school student. As his best friend, I should be the first to investigate. The alley in front of my house is not eye-catching, but a series of phone numbers came into my sight. As the investigation deepened, deaths occurred one after another, and the phone number gradually became a sign of murder. Even my head teacher almost died. What is all this for? Who on earth did such a strange and impenetrable thing?
Conception: