故事发生在遥远的26世纪,外科医生依德(克里斯托弗·瓦尔兹 Christoph Waltz 饰)在垃圾场里捡到了只剩下头部的机械少女将她带回家中,给她装上了本来为自己已故的女儿所准备的义体,并取名阿丽塔(罗莎·萨拉扎尔 Rosa Salazar 饰)。苏醒后的阿丽塔对这个五彩斑斓但却暴力而又残酷的世界产生了浓厚的兴趣,在结识了青年雨果(基恩·约翰逊 Keean Johnson 饰)后,阿丽塔开始接触名为机动球的运动,并在比赛中展现出了惊人的格斗天赋。
在废铁城居民们的头顶,漂浮着巨大的浮空城市撒冷,废铁城居民们的一切劳作和付出,都是为了给撒冷提供继续运作的燃料。在大财阀维克特(马赫沙拉·阿里 Mahershala Ali 饰)所设立的机动球比赛中,最终获得冠军的人能够获得前往撒冷生活的资格,阿丽塔决定利用自己的格斗天赋参加比赛,却被卷入了一个巨大的阴谋之中。
Sherlock Holmes is hired by the King of Bohemia to retrieve a compromising photograph from a certain lady. The King has tried to purchase the photo and even hired burglars to retrieve it, but without success. The woman in question is the very beautiful Irene Adler, an opera singer. She has made no demands of the King so it does not seem that blackmail is her intent. Using various disguises, Holmes learns as much about the woman as he can and is surprised when, after following her to a church, finds that she has married a barrister. Holmes stages a bit of theatre to get her to divulge the location of the photo but he finds he has met his match in both daring and intellect.
A young woman's corpse is dumped in the library of Gossington Hall, home of Jane Marple's friend Dolly Bantry and her husband Arthur. Pompous Chief Constable Melchett suspects a connection with Basil Blake, an arty young man who lives locally but Blake is dismissive when Melchett visits him. Then Superintendent Harper rings from the coastal town of Danemouth. Ruby Keane, a young girl employed as a dancer at the Majestic Hotel there, has gone missing, and her cousin Josie Turner identifies the corpse as Ruby's. Ruby is in favour with millionaire Conway Jefferson, whose own son and daughter were killed in a wartime air raid, and he wants to adopt her. His son-in-law Mark Gaskell, and daughter-in-law Adelaide react variously to the news. Miss Marple is convinced that the solution to Ruby's murder may be found at the hotel and she and Dolly book into a suite to investigate.