Marple is asked to help Gwenda, a wealthy young woman who has bought a house on the English coast, only to experience disturbing visions. Thanks to Miss Marple's investigations, Gwenda discovers that, instead of spending all her life in India, she had lived in the house as a child. The visions are actually flashes of memory - and she realizes she witnessed the murder of a beautiful woman named "Helen"在这个世界上,只有一种英雄主义,那就是在认清生活真相之后依然热爱生活。