Blade Runner has been a favorite of mine for years; the darkness, the architecture, the retro style, the sino-culture, and the soul searching Rick Deckard does as he hunts down illegal androids. I'd never read the book the movie was based on, and it was interesting to find how similar, and how different the original was.
Do Androids Dream of Electric Sheep? by Philip K. Dick, is classic, old-school SF, with questions about government tactics, the unfettered fruits of science, and organized religion, with a little of that mind trippy, 60s physcadelia thrown in for good measure. Plus electric sheep. What more could you want.
The story is fast, and follows Deckard through one real busy day. The stress Deckard is under is enormous, and it comes from all sides: the environment, his work place, his marriage, and lets not forget hunting down and killing androids. Who incidently, don't want to be put down, and are mostly inclined to fight back. And with everything else he has to do, actually searching for souls in androids may be one more thing Deckard has to add to his to do list.