Anthony Cade, a quick-witted rogue spending some time working as a tour guide in Zimbabwe, meets a friend who hands him a manuscript with instructions to deliver it to its publishers in London. Cade agrees, and quickly discovers that the manuscript is desperately sought after by high-level dignitaries—and revolutionaries—of the country of Herzoslovakia.
As he does his best to complete his task in bustling London, he soon finds himself a guest...