Simple and well acted, it has tension enough to knot the stomach.

If the ambition is to provide two hours of instantly forgettable, popcorn-munching escapism, it succeeds.

A lot of perfectly good film show their cards early, establish a unique premise and let the audience explore a topic at a leisurely pace, without much in terms of surprise. this film is not one of those films.

The movie really just wants to entertain people.