Cecilia Bassingwaite is the ideal Victorian lady. She's also a thief. Like the other members of the Wisteria Society crime sorority, she flies around England drinking tea, blackmailing friends, and acquiring treasure by interesting means. Sure, she has a dark and traumatic past and an overbearing aunt, but all things considered, it's a pleasant existence. Until the men show up.

Lady Violet is keeping secrets. First, she founded a clandestine sanctuary for England's most brilliant female scientists. Second, she is using her genius on a confidential mission for the Crown. But the biggest secret of all? Her feelings for protection officer Arthur Kneland. Solitary and reserved, Arthur learned the hard way to put duty first. But the more time he spends in the company of Violet and the eccentric club members, the more his best intentions go up in flames. Literally.

The daughter of a distinguished soldier, Bess Crawford follows in his patriotic footsteps, volunteering to serve her country as a nurse during the Great War. In 1916 she promises Lieutenant Arthur Graham that she will carry his dying request to a brother. When Bess arrives at the Graham house in Kent, Jonathan Graham listens to his brother's last wishes with surprising indifference.

A reluctant ex-spy with demons of her own, Elinor finds herself facing down one of the most dangerous organized crime gangs in London, ultimately exposing corruption from Scotland Yard to the highest levels of government. The private, quiet “Miss White" as Elinor is known, lives in a village in rural Kent, England, and to her fellow villagers seems something of an enigma. Well she might, as Elinor occupies a "grace and favor" property, a rare privilege offered to faithful servants of the Crown for services to the nation.

Ian Rutledge returns to his career at Scotland Yard after years fighting in the First World War. Unknown to his colleagues he is still suffering from shell shock, and is burdened with the guilt of having had executed a young soldier on the battlefield for refusing to fight. A jealous colleague has learned of his secret and has managed to have Rutledge assigned to a difficult case which could spell disaster for Rutledge whatever the outcome. A retired officer has been murdered, and Rutledge goes to investigate.