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.

Great movie. Not sure what people expected but I found it highly entertaining.

It is neither dumb nor smart enough to be fun, and spends way too much time with its boring human characters.

Each character in this movie — down to the smallest one — is an individual rather than a type, prone to spontaneous changes of mood and sometimes amusing outbursts of pettiness or ill humor.