Yangcheng Mist

1933, Shanghai Beach. A female corpse, a diary, and a deadly fog sweeping over. When Lian Xiangxiang died, all the evidence pointed to her lover who owed a huge debt. This seems to be just a common case of murder and robbery. However, the police chief Gu Qihong, who had returned from studying abroad, smelled the smell of conspiracy from a trace of silk fiber in her nails. He teamed up with the ace female detective Su Nianqiu, whose life experience is a mystery, and got a glimpse of the truth in the coded diary left by Lianxiang...