A mysterious summons from her cousin Laurel causes Amory Ames and her playboy husband Milo to set off post-haste for the Lyonsgate estate in the English countryside. The pair are surprised to discover an eccentric and distinguished group of guests have been invited, echoing a party from seven years ago of wild young things which ended in tragedy. At the centre of the group stands the notorious socialite Isobel Van Allen.

But someone wants the past to stay buried and they are desperate enough to turn to murder. It's up to Amory and Milo to sort through a web of scandal and lies to uncover the truth, and the identity of a killer.