Arthur Abdel Simpson, a small-time con artist, finds himself entangled in a dangerous geopolitical power struggle after fleeing to Central Africa. Desperate to maintain his facade as a seasoned mercenary, Simpson navigates a landscape of corporate greed and shifting loyalties. He must outmaneuver ruthless multinational agents while struggling to keep his own survival instincts from betraying him. The narrative employs a cynical, first-person perspective that highlights the absurdity of the protagonist's predicament.

This work is widely regarded as a quintessential example of Eric Ambler's ability to blend suspense with biting social commentary. Readers often highlight the protagonist's voice as a masterclass in character-driven irony, noting how Simpson's incompetence serves as the primary engine for the plot's tension. The narrative is frequently praised for its cynical, grounded approach to the spy genre, avoiding the tropes of high-stakes heroism in favor of gritty, realistic opportunism. Critics often point to the book's sharp wit and its unflinching look at the intersection of corporate interests and political chaos as its most enduring qualities.