In a flooded future London, Detective Harley Stone (Rutger Hauer) hunts a serial killer who murdered his partner and has haunted him ever since. He soon discovers what he is hunting might not be human.
A caretaker at a summer camp is burned when a prank goes tragically wrong. After several years of intensive treatment at hospital, he is released back into society, albeit missing some social skills. What follows is a bloody killing spree with the caretaker making his way back to his old stomping ground to confront one of the youths that accidently burned him.