In the 1990s, Jiangcheng's undercurrent was dormant, and mysterious cases occurred one after another. Professor Chen Jingyuan disappeared mysteriously, the case of dismembered corpses at Jinling University was mysteriously suspicious, Zheng's father and son lost contact out of thin air, and many unsolved missing persons cases followed one after another. All the cases seem to be scattered, isolated and without any connection, but they have been sealed up over time and become unsolvable backlogs, hidden in the dusty files of the old city.
More than thirty years have passed, and the old case has finally been reopened. The investigators traced the case across provinces and cities, traveling through the deep alleys of the old city, digging into the secret connections and dusty past that had been covered up by the times. They disassembled the cases layer by layer and reasoned step by step, one by one, to connect the bizarre old cases that had been separated for many years.
The hidden evils that have spanned decades under the market slowly reveal their outlines. The cruel truth buried by time penetrates the layers of fog and will eventually break through the darkness and be revealed to the world. (Written from a criminal investigation perspective)