The plot of this is very, very good. I felt we really got into Colin's head as he dealt with his estrangement from his culture and his family because he decided as a teen to not be Jewish anymore. I didn't feel like we really got to know Leora very well. She was pretty flat to me, but still as an observer of the situation from outside, she was intriguing. The mother's depth of despair and hysteria (almost to the point of insanity) was truly heart-wrenching. The dad came across as fairly cold; who really expected the parents to go straight back to work when their son was missing?
The Jewish elements were intriguing and only occasionally overwhelming when the sentence had a bit too much Hebrew in it and I didn't know what all the words were. It had the same sort of feel that many Christian inspirational romance novels have, with a secondary plot line that deals with religion on top of whatever else is going on.
I figured out who the bad guy was fairly early with my crack knowledge of what Renard means, though I didn't see the link to who he was in real life. I felt like the police failed to follow up on a lot of clues, especially when asking the parents about who might hate them. There was a bit too much repetition and the book could have benefited from some tighter editing. For example, when a character was introduced, we got their whole past and then they repeated the whole past in dialogue through out the story.
Overall, a really great read!