Dark Line

In Shanghai in 1939, Gu Mingyuan only cared about two things: business, and Shen Wanqing. He is a well-rounded wealthy businessman in the French Concession, and she is a quiet Chinese teacher in a missionary school. No one knows the true identity of the couple - she is an underground member of the Chinese Communist Party who guided him to join the organization, and he is her most staunch follower. Until one rainy night, he opened the door and found her lying in a pool of blood. Everyone is lying. From that day on, the businessman who just wanted to live a stable life with her disappeared. Instead, there is a man that all intelligence agencies fear and cannot live without. He has only one purpose. Find out who fired the shot.