Marple is visiting an old school friend, Lady Camilla Tressilian, along with an eclectic group: Neville Strange and his wife Kay, his former wife Audrey and her childhood friend and cousin Thomas Royde, Ted Latimer and finally Freddie Treves, a retired solicitor. When Treves is found dead the day after a dinner party at Lady Tressilian's home and Lady Tressilian herself is foun...