Luo Ming, a second-generation coal mine worker, returns from serving in the army and discovers that his ex-girlfriend Xiaoya has disappeared without any reason. Was it suicide? Or commit suicide? Luo Ming and Zhong Wenwen, who followed him back, decided to track down the murderer. The desolate back mountain, the gloomy abandoned tile kiln, and the appearance of an incorruptible female corpse kicked off Luo Ming's pursuit of the murderer...