Tony飾演兇殺組總督察劉正熙，他謀殺了自己太太淑珍的父親，案情發展指向兩名無業遊民，迅速結案。然而，淑珍開始懷疑，找來私家偵探─也就是正熙過去的下屬阿邦進行調查，真相越來越明...。Tony以洗練的演技詮釋這個復仇者的冷靜、壓抑與痛苦，仍以絲絲入扣的細膩表演，搶走全片風采。

In a city of love and prosperity, a city of lost hope and premature death, veteran detective Hei feels it all: the hurt, the helplessness, the horror. When his father-in-law, the billionaire benefactor Chau, is gruesomely murdered in his palatial mansion, he enlists the assistance of his former partner turned private detective, Bong. On the surface, the murder smacks of a vendetta that has taken a lifetime to fulfill. But no sooner has Bong agreed to crack the case with Hei than he realizes nothing is what it appears to be. Undoubtedly, they are after a monster in a perfect crime: every detail was meticulously orchestrated, every motive conveniently justifiable, and every culprit and potential witness mysteriously eliminated...