High-powered CIA analyst Vivian Miller is happily married to a man she adores, and the mother of four beautiful children. While examining the CIA's Russian account, however, Vivian makes a shocking discovery that makes her question everything she believes. She thought she knew her husband inside and out, but now she wonders if it was all a lie. How far will she go to learn the truth?

"Breathtaking, heart-pounding…. [This novel] is a really astonishing achievement for any writer, let alone a first-time novelist."—Louise Penny