Let me just follow up this post on Premeditated by saying that yes, I did turn out to be right in the prediction I made VERY early in the book, and it was quite frustrating watching the protagonist blunder around not realizing what I realized, especially since she had ALL the information I had.

Except, I suppose, the fact that she's in a novel.  That's a strong predictor for plot twists that rarely occurs to someone in real life.