This was the first in the series. Man! it would have to get better!!
So freakin cliched, So boring, So not Slow Horses!!!
This review on Goodreads says it well :
I guess when you chose to read a schlocky novel that has something to do with cartoonish assassins, British military spies, hard-bitten lady detectives, and a dim-witted heroine, you deserve what you get