Murderer Zhou Minggu raped and killed five women and drew pictures on their bodies. When he committed the sixth crime, he was chased by the police. The female prosecutor Ou Haizhong was convinced that Zhou deserved the punishment, so she asked her college classmate and lover Bing to defend Zhou. The National Institute of Scientific Investigation records room stored two sets of specimens, one set was the reproductive organ specimens obtained from a male who died during sexual intercourse with a female victim, and the other set was the specimens of a baby that was still alive in the female victim's body for one month. Later, Zhou was hypnotized and revealed all the related mysteries.