It's entirely possible that sending the audience out feeling lousy was intentional

There's no way I can possibly love it entirely but I just think its ridiculously bad, but enjoyable at the same time.

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