"The Worricker Trilogy." Very well-done series about a quirky but likable British MI5 agent. Bill Nighy stars. It's a conspiracy thriller, very British and you need to pay attention to details. Who the good guys and bad guys are is not always clear cut. First-rate cast. Ralph Fiennes, Helena Bonham Carter, Judy Davis, Rupert Graves, Wynona Rider, Christopher Walken, Rachel Weiss, many others.