James, an honest detective working for the Commercial Crime Bureau, is keeping a close check on suave businessman Lee Siu-pong. When an entrepreneurial extortionist becomes interested in Lee's business, he has the blackmailer assassinated. Fearing that the damning paper may fall into the hands of James, Lee does the only thing a true criminal would do: he kidnaps the cop's girlfriend Suki. When James pursues Lee, he is horrifically burned in an explosion set off by Lee. James dons a silver mask and sets out for brutal, gut-wrenching retribution after months of difficult rehabilitation. Meanwhile, Suki, Lee's unhappy mistress, plots the thug's grisly fate as well.