William Cowling, a man obsessed with the impending threat of nuclear annihilation, navigates the absurdity of his existence while preparing for the end of the world. As he digs a fallout shelter in his backyard, Cowling reflects on his life, his relationships, and the pervasive anxiety that defines his generation. The narrative unfolds through a non-linear, first-person perspective, oscillating between his frantic present and the formative events of his past. He struggles to reconcile his personal desires with the looming shadow of global destruction, creating a tension between domestic normalcy and existential dread.

This novel is often characterized as a departure from the author's more famous war-focused narratives, shifting the lens toward the internal, domestic front of the Cold War era. The work suggests a focus on the absurdity of modern life, where the protagonist's obsession serves as a metaphor for the collective anxiety of a generation living in the shadow of the bomb. Readers likely find the tone to be a blend of dark comedy and profound existential questioning, reflecting the author's signature stylistic precision. The narrative structure invites an analytical reading of how personal history and global politics intersect within the confines of a single, troubled mind.