Jeff Walker is one of the best golfers in the world. But all of a sudden, he seems at a crossroads. Controversial posts on social media and alleged death threats lead to Team Walker hiring extra security. Enter Sam Langford, a West London based security expert who follows Walker around, finds nothing suspicious but does find time to fall in love with the golfer's agent. Meanwhile, in the Midlands, police officer Catherine Horvill's search for a missing man sees her uncover a drug cartel who threaten her life. And it leads her to London and Langford. Full of suspense, mystery and murder, Who is Jeff Walker? will keep you guessing until the final page.