London rules
(Book)

"Over at Slough House, the MI5 satellite office for outcast and demoted spies, the agents are struggling with personal problems: repressed grief, various addictions, retail paralysis, and the nagging suspicion that their newest colleague is a psychopath. Plus someone is trying to kill Roddy Ho. But collectively, they're about to rediscover their greatest strength--that of making a bad situation much, much worse. It's a good thing Jackson Lamb knows the rules. Because those things aren't going to break themselves"--Amazon.com.