The Great War may be over, but for many, there are still obstacles on the home front. Reconciling with her estranged husband makes Verity sympathetic to her friend Ada's marital difficulties. Bourgeois-bred Ada recently married to the Marquess of Rockham, is overwhelmed trying to navigate the ways of the aristocracy. And when Lord Rockham is discovered shot through the heart with a bullet from Ada's revolver, Verity fears her friend has made a fatal blunder.
While striving to prove Ada's innocence, Verity is called upon for another favor. The sister of a former Secret Service colleague has been killed in what authorities believe was a home invasion gone wrong. The victim's war work—censoring letters sent by soldiers from the front—exposed her to sensitive, disturbing material.