The acting is not bad. Special effects are good. However the premise of this movie is absolutely ridiculous. O.K., I get that you need to suspend some beliefs when watching a horror movie but this goes too far. A murderous monster the mature of which is never revealed. It just kills or causes killing. A blindfolded woman with 2 blindfolded 4 year olds navigating a river for many miles, fighting off bad guys, and surviving capsizing? In addition, the movie reeks of political correctness. But I guess we have to endure that these days.