No pun intended - we have a mother here - I mean what happens to her, you do not wish upon anyone. Not your worst enemy (at least I hope you don't). And it surely is not something that - well you can connect, you can empathize, because you can imagine what this would be like for you or for anyone. And we know that stuff like this happens - maybe not exactly the way we see it in the movie (and without some of the cliches - on the other hand, reality has shown us, that it can be wilder than any fiction).
There is enough tension and if you can forgive the flaws the movie has - acting and story wise that is ... well you may feel that it is better than what I rated it ...
There is enough tension and if you can forgive the flaws the movie has - acting and story wise that is ... well you may feel that it is better than what I rated it ...