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 Lon
简介：Childhood friends Tommy and Tuppence meet in London after having served in World War I. Recently demobed, short of money, and with no job prospects, t
简介：American psychologist John Holden arrives in London to participate in a symposium aiming to expose witchcraft and devil-worship as a fraud, with atten
