The protagonist Lang Ye and others enter a small mountain village for interviews. Due to a natural accident, they encounter a series of horrific serial murders. The dangers behind them and the entanglements of historical grudges are interspersed with strange local customs. Starting from the identity of the two main characters, the reporter and the police, we explore the sinister human nature behind the truth. They cycle back and forth between determination and confusion, making the atmosphere of terror more prominent, and the search for clues goes deeper and deeper...