From the introduction: You're an angel on the make. Of course, you have good intentions - you're an angel - but you don't quite have what you need to fulfill them, and you're willing to go pretty far to get what you want. You've fallen in with a crowd of angels an awful lot like you. You've ended up playing one of the games this crowd plays. And you've bet more than you can afford to lose. This is what angels do when nobody's watching.