There is a London you might not know. A London of dingy pubs and brutal alleyway encounters; a seething metropolis populated by weasel-faced burglars, psychotic doormen, and professional killers with cold hearts and cruel intentions. It's a place Matthew Moriarty knows only too well. Jobless, hopeless, and half-crippled by a beating, Moriarty is at rock bottom, left with only a dwindling supply of prescription painkillers for company. And when he accepts a lucrative offer to track down a missing friend, things get a whole lot worse. As the search leads Moriarty into mortal danger, one thing becomes clear: mess with this city and it messes with you.