Chen Jingyi (Kathy Chow) is a senior inspector, the mother was abnormal in 20 years ago the assailants brutal rape and murder, the police found her to become a murderer. At this time, the same way the murder case occurred outside the inner turmoil, static instrument, to pursue the murderers. The pursuit of the static instrument, and the police have a husband who developed an ambiguous relationship. But she did not forget to be the culprits to justice. But in the process of continuous pursuit, she gradually fell into the trap of the murderer......

imdb:tt0163692