The story takes place in country C in the 1930s. It tells the story of an accidental discovery by Inada Bakjin. As a result, the cave at the back of Siam Village was listed as a restricted area by a mysterious organization. Before that, a group of strong laborers hired by the mysterious man died inexplicably, and the cause of their death was unknown.
Subsequent police intervention eventually brought the case to a close. It is said that the experts who participated in the study of the case later died and went crazy.
Tian Bajin, the only witness and survivor of the incident, was pushed to the forefront of public opinion. In order to prove his innocence, he vowed to get to the bottom of the matter.
But a series of strange things happened after that, subverting everyone's understanding. Not only is the matter not over, but it is just the beginning...
