This is the story of a Hero who is set-up (we don't want someone who really killed his own wife), and a heroine, who is the investigator of that said crime.
May I ask, in the first place, since it is a gunshot, why didn't the police check for prints in the gun and tested Zach for gunpowder? Why no one hears about the gunshot? Why did the forensic officers just assumed that since the watch on the victim's wrist says 7:30 that she really died at that time?
Joceline is somewhat incompetent in being a police officer, acting out of libido instead of her brains. Zach, on the other hand is a bit cold and polished but really likes dirty talk and somehow rough sex.
I wish that they should focus more on the crime than their acting libidos. There are many sex scenes that you eventually stir away from the real plot. And the climax part is a bit anti-climatic, that the real suspect will tell everything for the sake of ending the story in a good mood.