As a child, Lydia Pallas became all too familiar with uncertainty when it came to the future. Now, she's finally carved out a perfect life for herself—a life of stability and order with no changes, surprises, or chaos of any kind. She adores her apartment overlooking the bustling Boston Harbor, and her skill with languages has landed her a secure position as a translator for the U.S. Navy. However, it is her talent for translation that brings her into contact with Alexander Banebridge, or "Bane," a man who equally attracts and aggravates her. When Bane hires Lydia to translate a seemingly innocuous collection of European documents, she hesitantly agrees, only to discover she is in over her head. Just as Bane's charm begins to win her over, Lydia learns he is driven by a secret campaign against some of the most dangerous criminals on the East Coast, compelled by his faith and his past. Bane forbids any involvement on Lydia's part, but when the criminals gain the upper hand, it is Lydia on whom he must depend.