The premise is extremely tragic and heavy, with the potential to result in a shocking movie. However, this potential is lost due to a number of problems. The performances are weak and unable to convey emotions convincingly, often completely out of tune with the tone of the scenes. The dialog is poorly crafted, overly explanatory and redundant. The direction and editing also leave something to be desired, full of narrative conveniences and scenes so forced, many of them unnecessary, as to be embarrassing. The only positive aspect lies in the practical effects, which are creative, well executed and responsible for intense and convincing graphic scenes. However, this is not enough to save the movie from its problematic execution.