When her friend's husband is wrongfully accused of murder, Lady Emily searches for answers from London's glittering ballrooms to Vienna's sordid alleys.

While vacationing at Cairnfarn Castle, the Scottish estate of the Duke of Bainbridge, Lady Emily, when the duke’s gamekeeper is murdered, investigates, discovering a link between his brutal death and that of a harrowing witchcraft trial hundreds of years ago that reveals the dark side of a seemingly idyllic Highland village.

Traveling to the French Riviera to celebrate a friend's engagement, Emily races against time to solve the suspicious suicide of a party guest and prevent a second killing.