The best book on loneliness I've read. That's all I got to say about it. Read it. This one will give you company and misery in equal measure.
If you are into mystery and suspense, just read this one. It reminds me of the short Alfred Hitchcock mysteries devoured during lunch-time at school. This brilliant story is just SIX (yes, one two three four five SIX!) pages long with mind-blowing presentation – the feel, the theme, typeface, advertisements, et al. Just download the PDF (it's free) and you'll know what I'm talking about.
Pre-requisite: You need to be familiar with Sherlock Holmes and Cthulhu (i.e. Lovecraft) universes.
So good is this story that it has been adapted into a board game of the same title. And I must say that the board game is equally fantastic and elevates the story-telling onto another level, inducing a level of tension not experienced in any other board game.