I don't understand the negative reviews except for the fact that people must not understand the film. I guess it's because you have to listen and pay attention to what is SAID. There are no crashes, explosions, or gratuitous sex scenes so it loses their attention.
It is a very intense subject matter and touches every emotion, you really never expect some of it. As for some saying you don't know who the actual culprit us, I believe it is answered by the last phone call by the female detective if you really pay attention.
I recommend this for people who like intense crime thrillers, but realize it has the potential for triggering (in I hate that word) subject matter.
