The book is well written, which would get it a 5 star rating from me even if it didn't examine a fundamental paradox of civilization without actually saying so.
A modern town, full of generally law-abiding citizens is forced to live with the kinds of fears law was created to protect them from. When the laws turned backward on themselves and became an instrument of the only person in the community who ignored the law completely, the law abiders all became accessories to a remedy forbidden by their own laws.
Afterward, the machinery of justice finally cranked up and spent an enormous amount of energy trying to make these reluctant lawbreakers pay for the crime of doing what the law was hired to do, and failed.
If you believe the machinery of justice is the friend to the common citizen, you don't want to read this book.
If you have a crack-house the police `can't do anything about' operating in the abandoned house down the block from you, you don't want to read this book.
If your wife or daughter is being stalked by some guy who has a history of rape or homicide, but the police can't stop him, don't read this book.
If there's a guy in your neighborhood who's been in prison for child molesting, you definitely don't want to read this book.
Probably no one should read this book.