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.之前来的时候他根本没有做多久就已经进入了另外一个鬼画背景当中，但是现在，距离似乎拉远了，亦或者鬼画的背景变大了，原本一条没多长的马路这个时候却诡异的延伸出去了一段很长的距离。