In 1943 Shanghai, military agent Chen Qian, tasked with assassinating a Japanese official, uncovers a conspiracy. Disguised as a Japanese envoy, he infiltrates enemy territory, relying on the help of Communist Party member Chun Yang to thwart the invaders' plans.
The story tells about various bizarre mysteries such as "Blood Soul Forest", "Pouling Town", and "Ghost Valley" that Bao Zheng experienced in his youth on his way to Beijing to rush to the exam.