简介：A mathematician and author, Luke Williams, is travelling up to London on a train when he meets a old lady, Lavinia Fullerton, who is also going to London, to Scotland Yard. Lavinia tells Luke that in her small village several people have died. The local police are certain that it was all accidental and are taking no action but Lavinia isn't convinced. In London Luke watches, horrified, as Lavinia is run over in a hit and run and he becomes convinced that she was telling the truth. He travels down to the village and with the aid of a local girl, who is also convinced that the deaths were murder, sets out to solve the mystery.
达芙妮·基恩,苏菲·奈丽丝,珀西·海恩斯·怀特,尼克·弗罗斯特,艾丽·斯考比,杨子英,斯蒂芬·卡林,米卡·阿蒙森,迈克尔·科拉斯,贾纳娅·斯蒂芬斯,兰内特·瓦雷,特洛伊·詹姆斯,贾利勒·斯瓦比,蒋如思,朱莉娅·迪扬,Cameron Gordon Norris,Toria Summerville,Louis Adams,梅努卡·萨瓦尔,克里斯蒂娜·萨赫利