Good concept, poorly executed.

It's a mild crowd pleaser for people who are exhausted by blockbusters.

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.

It's a good bad... and worth a popcorn matinée. While it's easy to lament what could have been...