Sham Shui Po is one of the most popular neighborhoods of prostitutes in Hong Kong. Li owns a residential building and renting apartments prostitutes earn their living. There is only one owner is and girlfriend prostitutes. Gather a group of prostitutes to adjust themselves to change the course of things not knowing that death is fast approaching … Start with the disappearance of prostitute named Ping. Ping is one of chiriaşele Li lives in one of the apartments with his daughter. In the attempt to find Li in the building is that many prostitutes have disappeared, none was found. The massacre begins. Li and prostitutes must find Ping and fight with invisible killer.