It is a performances centric movie

The film creates a perfect balance between action and depth of basic needs, in the midst of an infertile atmosphere.

It's funny, it's tense, it features two great performances from two actors and the director expertly creates a web of odd tension where you actually don't know what is happening for the majority of the run time.

The movie's neither hopeful in contrived ways, nor hopeless in different contrived ways. Somehow it manages to be wonderful