A series of bizarre murders occurred in the French Concession in Shanghai, and a strange pendulum was left at the scene of each case. Police detective Chen Minfeng was forced to cooperate with criminal psychology expert Tian Lei to solve the case. The rational Chen Minfeng and the intuitive Tian Lei were incompatible at first, but during the investigation, they discovered that all the cases seemed to be related to an unsolved case ten years ago.
As the investigation deepened, they discovered that there was a larger conspiracy hidden behind these cases, involving overt and covert struggles among various forces in Shanghai. Every time a mystery is solved, more will follow. In Shanghai, a city of the Republic of China where neon lights and shadows intertwine, the two must uncover the truth within the time limit, otherwise more innocent people will be victimized...
