Small Town Mystery

On New Year's Eve, the atmosphere of Yang Town was shrouded in the haze of a backlog of cases that had not been solved for two years. Young police officer Xu Ao gave up reuniting with his family and once again visited Zhang Lei's father - an old man who had been petitioning for two years and firmly believed that his son did not die in an "accidental slip". As the files were repeatedly read, a suspected forged death medical record and a doctor who disappeared mysteriously after the case was closed gradually revealed the layers of mystery behind the case.​ Zhang Lei's anomalies during his lifetime, a large transfer from an unknown source, a metal button with the word "Sheng" engraved on it, a death threat from an unknown number, and the unusual behavior of Sheng Mingyuan, the owner of the building materials factory, all the clues are intertwined, pointing to a well-planned murder and closure. In order to pursue the truth, Xu Ao resisted threats and traveled to neighboring towns to track down the missing doctor. However, she was repeatedly blocked by mysterious people and discovered that there was an unknown betrayal hidden around her.​ Old cases remain unsolved, but new dangers have arrived; doubts abound, and justice is never absent. Xu Ao swore by the police badge and followed step by step in the fog, vowing to uncover the darkness hidden deep in Henggang Town, seek justice for Zhang Lei who died unjustly and the missing doctor, so that all crimes could not be hidden.