The story is set in the Republican era, during a strange incident in Linjia Town. The townspeople inexplicably fall under an evil influence, as if being controlled and led away by a mysterious force, disappearing overnight like wandering zombies. Shen Xiaohan, a night patrolman in the town, takes it upon himself to investigate and rescue the people. Drawing on the ancient Taoist arts passed down through generations of night patrolmen, he eventually tracks down and defeats Mr. Jiang, who had gone astray while refining snake curses. Shen Xiaohan saves the townspeople and safeguards the security of Linjia Town....