We follow former rule-breaker Leonid McGill as he's buffeted between the overlords of New York's underbelly, desperate to turn straight, but unable to say no to a nicely paid job. When we're introduced, he's calling in old favours and greasing NYPD palms to uncover seemingly harmless information for a high-paying client. But when the former schoolmates on his list are bludgeoned to death one by one, McGill realises that a friendly reunion wasn't quite what his taskmaster had in mind. And the awkward questions that follow seem almost welcome in comparison to a visit from Willie Sanderson, a trained killer and 'modern-day Frankenstein', now primed to ensure that McGill breathes his last.