空心人空无一物，孤独掩盖真实自我。替身相许苍梧宾白

　　Barnaby and Troy investigate the death of Agnes Gray, a middle-aged resident of Ferne Basset whose body is found floating in the river. The autopsy reveals that she was suffering from advanced cancer, but she was beaten to death with a metal bar. The police find her home ransacked and her clothes shredded. They also learn that she lived quite frugally and gave most of her money... (展开全部)