I was totally surprised at how great this film.You could feel your paranoia rise as the film went on and as you gradually learned the details of the real situation.

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

Go in cold, and you're likely to emerge with your blood boiling. This has to be seen to be believed.

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.