Set in post-World War I England, the story follows Verity Kent, a war widow who receives a mysterious invitation to a house party on an isolated island. As she navigates the gathering, Verity uncovers secrets about her late husband's past and the guests, many of whom served alongside him during the war. Tensions rise when a murder occurs, prompting Verity to use her intelligence and resourcefulness to unravel the truth amidst a web of deceit, espionage, and hidden motives, ultimately leading her to question everything she thought she knew about her husband and his comrades.
