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 film may be flawed, but its message is not.

All of these films share one commonality, that being a kind of emotional center that humanizes a cast of monsters.

The film's masterful storytelling did its job. The message was clear. No need to overdo.