Before she agrees to a marriage proposal from a man she does not love, Miss Constance Lansing travels to London to help her cousin open a bakery. She's instantly charmed and soon falls in love with Mr. Graham Brinton, who offers to show her around Town and takes her on the best adventures of her life.
Graham, a former intelligence officer, gave up on love when his childhood sweetheart married his best friend, yet spending time with Constance restores his faith in love. When he learns his best friend is in mortal danger abroad, Graham is honor bound to rescue him. He refuses to divulge his feelings for Constance. By not telling her he risks her marrying another, but how can he ask her to wait for him when he doesn't know if he will make it back alive?