真相与幻想之间的界限是什么？感官是否能助我们认识世界？影片用一个摄影师的故事，铺开了一系列哲学、心理学的问号。 　　主角是摄影师托马斯(戴维·海明斯 David Hemmings饰)，某天他在公园里抓拍到年轻情侣的系列照片，出人意表的是，照片中的一个女子简(瓦妮莎·雷德格瑞夫 Vanessa Redgrave饰)竟然不惜一切代价要回她的底片。这让托马斯非常疑惑，他相信这张照片许是拍下了某些不可告人的秘密。果然，他把照片放大后，看到了一具尸体和一个拿着枪的人。 　　一桩谋杀案的雏形在托马斯脑中展开。他前往公园寻到了尸体，但没有人肯相信他的推测，朋友们不愿意和他一起调查这是怎么回事。第二天，当托马斯再次来到公园，发现尸体已经消失无踪。只剩下一群人进行着一场虚拟的网球赛，打着并不存在的的网球。

If These Walls Could Sing arrives with the 90th anniversary of famed London recording studio. 　　Universal Music Group’s recently-launched production house Mercury Studios has announced a documentary about Abbey Road Studios. If These Walls Could Sing will explore the legendary recording studio’s history in conjunction with Abbey Road’s 90th anniversary this November. The film is produced by John Battsek and directed by filmmaker and photographer Mary McCartney, daughter of Paul and Linda. 　　“Some of my earliest memories as a young child come from time spent at Abbey Road,” Mary McCartney said in a statement. “I’ve long wanted to tell the story of this historic place, and I couldn’t be collaborating with a better team than John and Mercury Studios to make this creative ambition a reality.”