The house that has been vacant for more than four months has experienced power changes in the half-hour interval around 2 a. M. Four times in the past few days. The latest one was 0.31 Degrees.
Measurement collection analyst Cao Zheng came to the door with his colleague Du Guoli. After checking several common background explanations and completing inspections of public areas, they found an old man boiling water alone in the house - retired meter reader Ji Wancheng. He often mixed the current duty with the typhoon night seventeen years ago, and also mentioned Cao Liqun and a coupon that was later filled in.
Cao Liqun is Cao Zheng's father who has been missing for seventeen years.
From the elderly living alone to the closed cold storage, from the hospital's backup power supply to the leaked work and rest curve, each anomaly brought Cao Zheng into the darkness of the city. But the data can only tell when a certain measurement point changed. It cannot judge who and why, nor can it convict anyone.
What he wanted to find out was not just what his father had done, but which part each person was responsible for.
