Popular author Aventurine Morrow is working on a biography of Genevieve Smithson, a veteran of the SOE-Britain's network of operatives in occupied France during WWII-and travels to York, England, to interview the aging survivor. Complicating matters, however, is Aventurine's nephew, Paul, who has accompanied her to the U.K. in an attempt to work through the grief of losing his father at sea. As the two travel together, hints of Aventurine's past begin to darken their steps, until long-hidden family secrets are brought out into the open through the interference of her former lover-secrets that threaten to destroy everything Aventurine holds dear.