I thought this movie was worth watching because of the ending. I didn't care much for the acting role of the female detective. Anyways a 3/5 just on the ending alone.

well the ending made up for the whole movie as it kept me going back and forth, i thought i knew what would happen at the end then i thought i was wrong but then i was right but then there was an extra twist, however 1 major flaw... the detective was on the phone to the person b4 she went and found them at the end? i thought it would be like saw but it failed on that front, was worth the watch but will not be added to my favs id give this a 6/10. for the ending 8/10. so 3/5 stars overall

liked it, got lots of twists and turns. It starts right away and keeps it up. worth the watch

Excellent movie, interesting and somewhat unexpected twists to the movie. The 'ending' absolutely blew me out of the water, very unexpected!

Not too bad for a one time watch. I did enjoy it somewhat but will not be watching it again. Enjoy!

In a word: Pedantic. This movie is boring. Unoriginal premise, extremely weak acting, and the story moved at a snail's pace. I think I lost a few IQ points just siting through this entire film. 3/10

good movie. killer ending

I loved the book & the movie itself was wonderful...Its rare that book to movie is almost as good as the book. I couldnt put the book down and could barely turn away from the movie..even though I already knew what was going to happen. I read the book at least a yr before I knew there was a movie coming... BOOK: 5/5 MOVIE:4.5/5

I would watch it again. I actually liked it. Lots of suspense, and the ending just made everything fall in place, but at the same time not. It's definitely a different movie, and the actings great. 9/10

This movie is a cross between Saw and Fight Club. So, basically its been done before. I personally thought it was a waste of time and the twist was weak!