Mr Wong is a third generation fisherman in Hong Kong, struggling to keep this tradition alive. One night, he decides to leave the crowded waters of the harbour, and fish in calmer waters. His luck changes when he catches something that does not belong to this world.

In China to donate his kidney to his dying niece, former black-ops agent Deacon awakes the day before the operation to find he is the latest victim of organ theft. Stitched up and pissed-off, Deacon descends from his opulent hotel in search of his stolen kidney and carves a blood-soaked path through the darkest corners of the city. The clock is ticking for his niece and with each step he loses blood.