Frances and George are enjoying some well-deserved leisure time in Paris when an old acquaintance from London, Alicia Stoke-Whitney, seeks Frances's help to investigate a personal matter. Alicia's daughter is being courted by Carlson Deaver, a wealthy American shadowed by a very suspicious tragedy.

Less than a year ago, Carlson's wife, a former actress, was murdered, her body discovered in one of the more dubious quartiers in Paris. Though authorities guess it was a robbery gone wrong, no one was ever brought to justice. Until Daniel Cadieux, Inspector for the Sûreté, follows a startling new lead. None other Sarah Bernhardt, legendary icon of the Paris stage, receives a piece of jewelry stolen from the victim, along with an incriminating note: I know what you did.
It opens a new door for the Hazeltons' investigation, as well. But not a soul believes that the Divine Sarah would become entangled in something so disreputable as murder--even if she and the late Mrs. Deaver did have a history of theatrical clashes. Amid questions of revenge, blackmail, scandals, and secrets, more poisoned pen letters follow, and suspects abound. Now it's up to Francis and George to infiltrate the most elite social circles of Paris, and find a culprit before another victim faces their final act.