The Huangpu Mystery

In the late autumn of 1935, Shanghai gangland tycoon Du Yunsheng entered a sham marriage with Lin Shujin, an underground Communist Party member, to cover up the transfer of documents. Japanese agent Sato Kenji disrupted the wedding, Lin Shujin was killed, and the documents disappeared. Du Yunsheng discovered signs of the Military Statistics Bureau's involvement, then infiltrated the 76th Secret Service Agency. During the Battle of Shanghai, he used torture interrogations as cover to pass intelligence to the Communist Party. In 1939, he played cat and mouse with Bai Manli, a songstress suspected of being a Military Statistics Bureau agent. They traded real and false intelligence at a dance, uncovering her connection to Lin Shujin. With Japanese searches looming over them, the two sides began a new round of covert warfare.