In the early spring of 1966, public security officer Ling Yuqi discovered traces of Bai Wei, the mainland leader of the Plum Blossom Party, in Beijing, and followed her to the Bat Hall of Prince Gong's Mansion. At this time, a girl in black killed Bai Wei with a flying knife and peeled off her human skin. Ling Yuqi fought with the girl in black, and the human skin disappeared.