Johnny Worricker (Bill Nighy) is a long-serving M15 officer. His boss and best friend Benedict Baron (Michael Gambon) dies suddenly, leaving behind him an inexplicable file, threatening the stability of the organization. Meanwhile, a seemingly chance encounter with Johnny's striking next-door neighbour and political activist Nancy Pierpan (Rachel Weisz) seems too good to be true. Set in London and Cambridge, Page Eight is a contemporary spy film which addresses intelligence issues and moral dilemmas peculiar to the new century.