I borrowed this book from the library as the cover caught my eye, and devoured it in two days. I found it extremely engrossing and very different from anything else I have read. The book is essentially a thriller but the story and the style of writing is quite unique and is told from several different viewpoints while the time line moves around at the same time. The result is that you are continually making assumptions that are quashed in the next chapter, and are never sure where the story is leading but are at the same time compelled to continue reading.
As a summary, the book tells the story of four friends who create an agency to apologise to people who have been wronged, but become entangled in a murder when they are sent to apololgise to a woman and find her nailed to a wall in her apartment.
After the initial high impact first chapter, I found the next few parts a little hard going as the characters are introduced, and I must say I found the premise of the 'Sorry' agency a little difficult to believe, but the momentum keeps building as the narrative switches back and forth between the friends and the murderer, and from the moment the body is discovered the momentum never stops.
There are some extremely grapic scenes throughout the book, and a story of abuse so poignant it nearly made me cry. The author skillfully takes you into the minds of several of the characters so that you find your sympathies changing as the book continues on and your initial impressions change several times.
This is not a standard Who Dunnit in any way and the killer himself seems to have as little control over the escalating situation as anyone else. The reader is given little clues along the way but has to wait until the end for these all to come together and the full story be known.
Highly recommend it.