A journalist's brutal murder in wintery London pulls a former Crimean War nurse into a dangerous investigation that unearths dark secrets from the past. Gemma Tate, seeking to leave her war memories behind, finds herself entangled when Jacob Harrow, a journalist with ties to Crimea, is found dead. Inspector Sebastian Bell, initially working alone, enlists Gemma's expertise when the evidence suggests a secret from the war is involved. The investigation intensifies with the murder of another Crimean nurse, forcing Gemma and Sebastian to confront devastating betrayals and a killer who may be closer than they think, with Gemma's own actions potentially putting her in grave danger.

This historical murder mystery is positioned as an addictive and atmospheric addition to the Tate and Bell series, drawing comparisons to other popular historical mystery authors and television shows. The narrative is designed to appeal to fans of intricate plots and period settings, promising a compelling blend of suspense and historical detail. The inclusion of a former Crimean War nurse as a protagonist suggests a focus on character depth and the exploration of past traumas within the mystery framework. The comparison to established series indicates an expectation of well-crafted puzzles and engaging character dynamics.