As the latest in a long line of Alex Delaware novels, this one is neither adventurous or new in providing anything more to our insight or understanding of Alex and/or Milo. The story starts off kind of slow and, for me at least, the murder(s) sounds kind of uninteresting. In addition, as the culprit is slowly unveiled, I kept thinking "and...so what?"
Having said all this, I'm still a sucker for Kellerman's Delaware novels, found it well written and thought the introduction of, his ambivalence toward and growing closeness with his new love interest was handled believably and well. His continued interactions with Robin are unsettling to him and spark the story along.
Meeting Petra Conner for the first time (I didn't read Billy Straight) was okay. She makes a nice foile for Alex and Milo and brought a different kind of energy to the plot.
While certainly not a great book like When the Bough Breaks, Bad Love or Monster, it's certainly not as bad as the The Clinic (possibly one of the worst books I ever read). If you like Alex, you won't be disappointed. If you're going to read Kellerman for this first time, don't start with this book; begin at the beginning with When the Bough Breaks and get to know him, Milo and Robin before picking this one up.