Seven years ago, socialite Edwin Green was found dead on the Lionsgate estate. At the time, police ruled the death an accident. And now the same guests who were here on the day of the tragedy gather at the estate - and they are joined by Amory Ames and her husband Milo. Milo jokingly invites Amory to investigate an old crime, not even suspecting that his involuntary prediction will very soon come true. Because the Amory murder will still have to be investigated, and not one, but two: the arriving guest, the scandalous writer Isabelle Van Allen, is found stabbed to death the very next day after her arrival. Many had reasons not to like her, but which of the respectable guests could decide to take such a step? And are the two murders connected? Perhaps this criminal, who got rid of Edward Green seven years ago, struck again?..