After years of mental abuse and servitude at the hands of her guardian, Katherine Mayes is finally at the age of marriage. Although she looks forward to it and has a suitable man in mind, her guardian has squandered her dowry, and the young lady now has her freedom but no funds. Deeply disapointed after a traumatic season in which her beloved does not claim her hand, Katherine decides never to marry in her life. However, the tormented lady is offered work at the secret organization known as Silk and Satin spies! There, she meets Viscount Perry Danes, a towering man scarred by war, who, for an unknown reason, seeks Katherine’s help.
After the war, the Viscount has been hunting enemy French spies in secret, and he wants Katherine to pose as his fiancee so that he can approach a man closely related to her! Katherine might be reluctant at first, but she tells herself that as long as she does not fall for Perry, all will be good. However, as the winter nights grow long, chemistry erupts, and for the first time ever, Katherine experiences jealousy and distrust which threaten to blow her cover… To make things even worse, an unexpected discovery will oblige the lady to choose between the man she’s always been in love with and Perry, the soldier who would sacrifice his own life to keep her safe.