"Sleeping Murder" is a mystery novel by Agatha Christie featuring the beloved detective Miss Marple. The story starts with young couple, Giles and Helen, who move into a house where Helen feels a strange connection to the place. She experiences unsettling memories that lead her to suspect a past crime may be linked to the home. The plot thickens as Helen remembers the mysterious death of a young woman years before. As the couple tries to uncover the truth, they are drawn into a web of deceit and hidden secrets. Miss Marple, with her keen intuition and insight into human behavior, becomes instrumental in solving the case.