A former British intelligence officer living in exile on the French Riviera finds his quiet life shattered when an assassin targets him, forcing him to confront the possibility that the betrayal comes from within his own inner circle. Tom Nash, seeking refuge from his past, must navigate the delicate social landscape of 1930s Le Rayol while protecting his goddaughter and friends. As the threat of global war looms, he is forced to manipulate his own social environment to expose a killer hiding in plain sight. The narrative unfolds through a tense, atmospheric lens that emphasizes the contrast between the idyllic setting and the encroaching darkness of political espionage.

This novel is frequently noted for its evocative sense of place and its ability to capture the specific anxieties of the interwar period. Readers often highlight the author's skill in balancing the slow-burn mystery with the looming geopolitical instability of the 1930s. The character of Tom Nash is often discussed as a compelling study in the difficulty of leaving behind a life of state-sanctioned violence. The narrative structure is widely regarded as effective in maintaining suspense while building a rich, textured environment that feels authentic to its time and location.