A female patient in a mental hospital named Guo Shaofang (played by Chrissie Chau) got pregnant for no reason, and the police started to investigate the case. The results of the investigation were unexpected. The date of Shaofang's miscarriage was exactly the same as the one a year ago. What was even more amazing was that both fetuses were the flesh and blood of the male doctor Li Yixiang (played by Lai Lok Yi) who was killed a year ago, and the report that the DNA sequence of the two fetuses was exactly the same indicated that the two fetuses were the same life. During the police investigation, an incredible story gradually emerged: the female nurse Guo Shaofang fell in love with the married male doctor Li Yixiang, so she schemed to replace the male doctor's wife Shen Luping's pregnancy medicine, causing Shen Luping's three-month-old fetus to miscarry, and the relationship between the couple deteriorated from then on. Guo Shaofang was with Li Yixiang as she wished, but horrible things happened around her one after another...