Former British prime minister Adam Lang (clearly modelled on Tony Blair) is up against a firm deadline to submit his memoirs to his publisher, and the project is dangerously derailed when his aide and collaborator, Michael McAra, perishes in a ferry accident off the coast of Martha's Vineyard. To salvage the book, a professional ghostwriter is hired to whip the manuscript into shape, but the unnamed writer soon finds that separating truth from fiction in Lang's recollections a challenge. The stakes rise when Lang is accused of war crimes for authorizing the abduction of suspected al-Qaeda terrorists in Pakistan, who then ended up in the CIA's merciless hands. As the new writer probes deeper, he uncovers evidence that his predecessor's death may have been a homicide.