this movie is good for the thrilling type of storyline. If you look for actionpack, don't bother. It is more on storyline, and observing how different type of people handle in situation like this. I found it abit similar like 'the mist' or 'cloverfield', minus the monsters part. And the ending really quite a twist for me.

Give it 4.5 out 10, for the storyline. Sadly it's dull movie abit.