Four girls have been murdered over the span of however many years. We go through the mechanical motions of the grieving mothers' every day lives instead of focusing more on the killer and building tension. There are liaison officers and a journalist. And lots of other people. The first three or four chapters all have different characters narrating. I found it hard to keep track of everyone and quickly ended up not caring about any of them. I skimmed the last half of the book. I didn't like the "twist". Or anything else for that matter.