Lucy Angkatell invited Hercule Poirot to lunch. To tease the great detective, her guests stage a mock murder beside the swimming pool. Unfortunately, the victim plays the scene for real. As his blood drips into the water, John Christow gasps one final word: "Henrietta". In the confusion, a gun sinks to the bottom..
For Judith Dunbar, her first glimpse of Nancherrow, her friend Loveday's beautiful family estate on the Cornish coast, is love at first sight - after the rigours of boarding school it spells luxury. She falls in love, too, with all Loveday's family. They treat Judith as one of them.