Jane Marple, the elderly amateur sleuth, takes a holiday at Bertram's hotel in London, to re-live her happy memories of staying there during her youth. The hotel is famous for fully preserving its Edwardian atmosphere even into the 1960s, from the proper staff to the elderly guests who frequent the tearoom. Miss Marple first sees Lady Selina Hazy, a childhood friend. Lady Hazy says she often thinks she recognizes people in the hotel but they turn out to be strangers. Miss Marple is intrigued by the other guests in the tearoom, especially a famous adventuress, Bess Sedgwick; a young woman, Elvira Blake, and her guardian Colonel Luscombe; and a forgetful clergyman, Canon Pennyfather.