As it already has been said - I have watched hundreds of movies in my life, and a lot of them have been really bad. This one, however, is by far the worst. I was sickened - and not by the plot - but simply by the lack of quality in both the story and execution. I could have made this when I was 10.
I was so frustrated with the way the story was told - in thoughts by the young girl, who tried to sound as deep as possible. It was just too simple. This story had the potential to be a descent movie - and what is the outcome? A movie which leaves me thinking I've wasted one hour and twenty minutes of my life. And don't get me started on the execution of it - bad quality, bad angles, bad effects, bad actors. Everything was just awful. If you like watching a movie - and then getting frustrated by how terrible it was, then watch it. If not, stay as far away from this movie as possible.
It all seemed to be rushed - And if that was the case: You will not make much money by getting a film inspired by the Kampusch-case out first, if it's THIS bad.