1941. London is suffering under the bombardment of the German blitzkrieg. A desperate murderer is using the blackout to his advantage, leaving a string of strangled prostitutes littered around London’s streets. One-eyed self-employed detective Johnny Hawke is drawn into a complex web of darkness, drama and death. He takes it upon himself to infiltrate the Britannia Club, a dangerous underground fascist organisation hell-bent on a Nazi invasion of Britain, and bring them down, single-handedly, from within. As the strands of his investigations come together, Johnny is faced with the greatest challenge of his life, and an ugly accusation: the murderer may be closer than he had ever imagined.