A man raised as an evacuee during the Blitz discovers that his entire identity is a fabrication, prompting a dangerous search for his true origins. Simon Thorn, having grown up as an unclaimed child of the London Blitz, finds his adult life haunted by fragmented memories and a persistent sense of displacement. As he attempts to trace his history, he encounters resistance from those who prefer his past to remain buried. The narrative follows his investigation through a post-war landscape, where every discovery threatens the stability of his current existence and reveals a darker truth about his displacement. The story unfolds as a tense exploration of identity, utilizing a third-person perspective to track Simon's descent into the secrets of his own forgotten childhood.

This novel is recognized for its atmospheric depiction of post-war London and its focus on the psychological weight of hidden history. The narrative structure emphasizes the slow, methodical uncovering of secrets rather than relying on rapid action sequences. Readers often note the author's ability to maintain tension through the protagonist's internal struggle and the unsettling nature of his discoveries. The work is frequently cited for its grounded approach to the mystery genre, prioritizing character development and historical context over conventional tropes.