Gwenda and Giles Reed, a young married couple, have emigrated from New Zealand to England. Gwenda is delighted with her new house in a seaside Devon resort – until a sequence of sinister events begins. Gwenda knows details about the house that she could not possibly know – and she feels a mysterious terror every time she climbs the stairs.
In her attempt to discover the truth, she calls in Miss Marple, who helps her uncover a ‘perfect’ crime committed years before. Agatha Christie wrote Sleeping Murder, the final Miss Marple novel, while living in London during the Blitz, but she ensured that it was held back for publication until after her death in 1976.
Miss Marple’s last case is the ideal end to a brilliant career.