Ling Bo's husband Gao Yuan and his friend Wang Xia both had an affair with belly dancer Meng Li, who used it to extort the two. Later, Meng was killed, Gao became a suspect, and Meng's brother Zhai Nuo also extorted Gao. Ling also met Gu Feng at home. He claimed to have evidence to clear Gao's guilt, but wanted to ask for money; Wang's wife Li Xiangjun lent money to Ling... Who was the real murderer of Meng's murder?