该电影由克劳德·惠特姆执导，比尔·贝克比、奥利维娅·德哈维兰、莱斯利-安·唐恩、提摩西·韦斯特、海伦·海丝等主演，于1982年上映。在95分钟的叙事中，《杀人不难》（又名：内详）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.