杀人不难，轻轻一戟，心却如铁，谁能不惧？夫妻之间观看的视频在线播放

　　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, ho... (展开全部)