A Certain Kind of Silence

This is a pretty weird movie, very unnerving. Not much is actually happening but everything seem so wrong. The story builds slowly, only to get weirder and even more unnerving until at the end we get at a very surprising end. The ending got eager to know more about the subject of this movie. I searched Google and found many a story on this subject. To my disgust, the subject of this movie isn't just some made up story. It's actually based on real events. This movie is a must see for everyone interested in psychological thrillers with a strong social warning. It's quite unsatisfying I just didn't manage to figure out if those real events have stopped, besides, I wonder about the exact subject of this movie: was this also part of reality?