He is a Hong Kong celebrity - a master pianist, adored, sought after by many, an upcoming concert leaving audiences enthralled. He is dead. Found floating in the ocean, embittered and jaded detective Lam (Simon Yam) is called in to find the murderer. Lam quickly identifies a killer from the past - a brutal man just released from prison (Nick Cheung) with possible ties to the family. But what Lam surmises as a clear-cut case of revenge gets murkier, the more he investigates. Suspicion, facts, and the truth become harder, the closer he looks.What unfolds is a crime from the past. 20 years of lies, and a secret so shocking it threatens to pull the entire case down. Who is the victim and who is the killer?