Synopsis: During the period of the Republic of China, there were rumors that girls would disappear every midnight. A small town named Huangmiao Village caught the attention of police detective Tan Hui. In Huangmiao Village, since the thirteenth family of the third concubine of the Huang family was destroyed 20 years ago, girls have been disappearing mysteriously one after another. Every second watch, people in the village can hear the third concubine who died twenty years ago singing Kunqu Opera. "Paperman Zhang", who was in charge of taking care of the spiritual position on weekdays, was suddenly found dead in the mass grave. According to word of mouth among the villagers, this is the ghost of the third concubine who came to take revenge. Tan Hui followed the clues all the way to investigate, and accidentally discovered that there was a mysterious dry well in the mansion of the warlord Chang Dashuai in the village, which was actually connected to a huge and strange underground palace. When he continued to probe down, he actually involved step by step a shocking conspiracy involving dozens of lives and the tragic fate of countless young girls...
