Maximilian Cale, the Duke of Lyons, and Lisette Bonnaud find passion growing between them when they pose as husband and wife in order to search for their respective missing siblings in Regency Paris.
Dominick Manton, Viscount Rathmoor, who is trying to right the wrongs of his past, agrees to help his ex-fiancee, Jane Vernon, whom he still loves, find her missing cousin, who was married to his late brother.