Malice by Keigo Higashino
Keigo Higashino is a Japanese author, apparently a very popular one. I've read two of his books before from the and loved them. This one is from a difference series, #4, but the only Kaga mystery translated into English at this time. Happily is stands well on its own.
As the blurb states, the story is more of a cat and mouse game than a traditional mystery. We learn early who the killer is, even hear their confession, but as Kaga, our detective, digs deeper he questions what he's been told.
I have to say I've never read a mystery quite like this one, and I've read a lot of mysteries. The killer's thought process and actions are pretty fascinating really and the motive was not what I was expecting. In the beginning, we see things from two points of view, Kaga's and Nonoguchi's, but as time goes by we hear more Kaga's thoughts and his interviews with people who knew the...