A psychopath stalks the night-darkened streets of London. His victims die horribly--their last moments a nightmare of fear and pain that feeds a savage madness. Their mutilated bodies taunt the city. As the public panics, the police stand by, helpless. In a desperate move, the authorities call in Paul Fenner, an ex-cop with a checkered past. Fenner has won his battle with booze and overcome the failure of a lifetime. Now, he's about to become the prey of an insane killer, caught in a maze of madness and murder..