莫尔斯和刘易斯调查劳拉波因德克斯特的死亡，一个美国游客是访问牛津的独家旅行团的一部分。她的私人物品中丢失了珠宝，包括她本打算捐给阿什莫尔博物馆的狼牙舌头。病理学家认定她是自然死亡，但莫尔斯觉得有些不对劲…

Morse and Lewis investigate the death of Laura Poindexter, an American tourist who is part of an exclusive tour group visiting Oxford. Missing from her personal effects is her jewelry, including the Wolvercote Tongue which she was...