Night Tremors (Rick Cahill) by Matt Coyle

Every time I seem to think I am tiring of the PI genre maybe another novel like this one pops up and affirms my love of the genre.
I loved the first one in this series so I was excited to read this one and it didn't disappoint. In fact, I loved it even more than the first book. The story flows better and faster, the prose is even tighter and the mystery more interesting.
Haunted by the memories of the man he killed and the death of his wife Rick Cahill now works as a PI for a larger firm, snapping pictures of cheating husbands and wives. When a lawyer (great, fun character) asks him to prove a young man did not murder his family he gets involved with a dangerous group of bikers.
As he investigates the case gets more and more personal and in the end Cahill is forced to face his demons and embrace his dark side. The ending might really surprise you and had me anxiously awaiting book 3.
This is shaping up to be one of my favorite new series.