"Sleeping Murder" is a gripping crime novel by Agatha Christie that takes readers into the mysterious world of an old coastal house. The protagonist, Gwenda, moves into a newly acquired villa and is soon haunted by eerie feelings and memories from the past. Despite her efforts to modernize the house, she is overcome by an irrational fear, especially when climbing the stairs. To uncover the dark secrets of the house, Gwenda turns to the famous detective Miss Marple. Together, they set out to solve a perfect crime that was committed many years earlier. The story combines elements of the mysterious with psychological tension, offering a captivating read for crime and thriller fans.