本片由阿拉斯泰尔·里德  执导,邀请演员约翰·肖  凯文·沃特利  西蒙·卡洛  肯内斯·库兰汉姆  出演的欧美剧类型电影，讲述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 going to donate to the Ashmolean Museum. The pathologist determines that she died of natural causes, but Morse feels there's something not quite right. The mystery deepens when Theodore Kemp, the Ashmolean's expert on the Wolvercote Tongue, is found dead and Mrs. Poindexter's husband goes missing.