Such a frustrating disappointment

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.

I didn’t really have many expectations going into the movie (good or bad), but I actually really enjoyed it. I really liked the characters and the banter between them.

Strong acting helps the film overcome an uncertain premise and create characters that hold our attention absolutely.