Argylle

Author Elly Conway is finishing her fifth novel about the adventures of spy Aubrey Argyll, who fights a sinister secret organization. When a woman goes by train to visit her mother, a cheeky long-haired man sits down next to her and informs her that he is a real spy, and Elly has guessed much of what is happening in reality in her books, and they immediately need to fly to London to search for the hacker Bakunin.