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

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 best films of this genre always show a path and provide a takeaway for being a better person.

It is an exhilarating, distressing, funny and profound film, with one of the more memorable film scores in years,