Ling Kwong is 40-year-old, self-assured Chief Inspector of Police. He's solved numerous difficult cases on his own, has a flawless track record, and soon, is to be promoted to Superintendent of Police. Everyone sees him as the future… More Ling Kwong is 40-year-old, self-assured Chief Inspector of Police. He's solved numerous difficult cases on his own, has a flawless track record, and soon, is to be promoted to Superintendent of Police. Everyone sees him as the future head of the Hong Kong Police Force. Ling has a perfect family -- a beautiful, gentle wife, a charming son and a posh lifestyle. In every sense, he is as enviable as he is successful. His perfect life takes an abrupt turn though, when he wakes up after fainting in a dilapidated building, on one of his operations. He wakes to find his short-term memory damaged, and is more shocked to find his best colleague killed in the same building -- BLOODY HOLES all over his body, mercilessly blood-let by an ELECTRIC HAND DRILL! Ling's colleague is the third victim of this series of "blood-letting murders." Using the most inhuman means, this serial killer conjures up for each victim witness his own slow death, in supreme terror and unimaginable pain! The extreme cruelty of the murders appals even the most experienced policemen, and after each killing, the murderer simply disappears and leaves no trace at all to the clueless police. At the height of his life, Ling encounters this most vicious murder throughout Hong Kong's crime history. He must catch the killer at all costs, to avenge his friend's death. But as Ling sifts through the clues of the murders, he finds that all the evidence points toward him as the murderer! The deeper he tries to dig into the truth, the more suspicious he becomes. All this time, Ling's short-term memory continues to desert him. He is losing the last trustworthy piece of evidence -- his memory. Ling is being pushed to the edge of madness! Is he really the murderer -- or not?