In contrast to the classical detective story, the spy novel tends to be considered a suspect, less literary genre. While previous studies have focused on its historical, thematic and ideological dimensions, this critical work seeks to distinguish British espionage fiction based on its unique narrative form, which is typically elliptical, oblique and recursive. Featured works include eighteen novels by Eric Ambler, Graham Greene, Len Deighton, John le Carre, Stella Rimington, and Charles Cumming, most of which exemplify the existential or serious spy thriller. Half of these texts pertain to the Cold War era; the other half to its aftermath in the so-called "Age of Terrorism."

Eric Ambler's first six novels released between 1936 and 1940 quickly established his reputation as a master craftsman of intrigue and espionage narratives. Far less often discussed are the twelve Cold War novels he published, after an eleven-year hiatus as a screenwriter, between 1951 and 1981. This study argues that his entire corpus manifests late modernism's impulse toward a broadly social, political, and cultural critique of the times. Ambler's fiction from the mid-1950s onward is also remarkable for its ludic turn as he assesses the self-deceptions of an increasingly bureaucratized and media-focused world blind to its own follies. In these later works can be seen elements of what has come to be known as postmodernism, though in his commitment to chronicling the juggernaut of modernity he remains a uniquely independent witness of what is now being called the long twentieth century.