Publisher's Synopsis
This thriller centres around the building tensions between two professional assassins, O (Takashi Sorimachi) and Tok (Andy Lau). O has been in the business of professional killing for years, and his secretive, isolated existence and dedication have made him the best there is. But when Tok, a flamboyant newcomer to this dark world, arrives on the scene, O's supremacy comes under threat, especially when Tok enlists the help of O's pretty young housekeeper, Chin (Kelly Lin) to take out his rival.