督察石偉烈被派駐離島警署，初上任後於一次例行巡邏中搗破毒窟，拘捕了多名癮君子，而行動亦揭露出背後千絲萬縷的貪污內幕。石的上司以金錢利誘，要求石同流合污，石不為所動，並暗向廉署舉報，因而被視為警署內「二五仔」。為此，石與女友弄至感情破裂，在法庭作證時更遭到辯方律師對其人格的猛烈攻擊 ...

In “A Man”, Police Inspector Shek reports his corrupt colleagues, but it is his own integrity which comes under investigation, Joyce's implication that being honest to oneself can extract a high price. Also characteristic of her ICAC scripts is that they're non-judgmental and the protagonists have distinct personalities. Unfortunately, it was banned by the authorities until its initial release at the Hong Kong International Film Festival in 1999.