The prologue is promising because it is written in the perspective of the killer -- and it reminds me of mainstream mystery/thriller novels. Chilling and a taunt of gore/action.
But then our heroes meet, and by chapter 3, on the first night Mac and Tanner are working together, they have sex. Oh, I know, I know, it is said to be made possible because of Mac's relationship with the last victim, and sex is always one of the things people to deal with death. But really?!?
I guess the set-up of the prologue makes me prepare for a murder mystery but what I get is a romance, and it throws my mood off. Plus, the ending is pretty anticlimatic. I already know (or at least guess) the identity of the killer by Chapter 7 with the once sentence of his thought.
The the process of catching the murderer is also downplayed, no action, actually, just in a passing. One moment they're raring to go to capture the murderer, the next is one year later, the murderer is on a trial, and Tanner is thinking on telling Mac his secret (sigh)
I guess, readers better not expect this for murder-mystery/action book when they read the prologue. It probably helps. It's an okay read, but not special.