Imagine a world where body part harvesting is not taboo, but commonplace. Imagine someone else getting to make the decision for you to give your body parts to someone else. Imagine walking around and seeing people on the street who are proudly sporting new limbs, eyes, and other various body parts. 
 Would you want to live in that world? 
 I sure as hell wouldn't. But it sure makes for damn good reading material, as long as you take care not to think too hard about how it's virtually impossible for some of these scenarios to happen (scientifically, at least. You never really know how screwed up the government is going to get.). 
 Installment two of the Unwind series brought back the same beloved characters from book 1, but also threw in a couple of surprising new characters - one being a boy who was made entirely of recycled body parts. Of course, now I'm dealing with new questions in my head. Does he have his own personal soul and individual thoughts, or is he only an eclectic mix of all of the other minds and bodies combined? 
 Things that make you go hmmm...