In truth, there is barely enough story here to make a film.

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 simply great fun, a winsome film and an occasionally over-the-top luxury fantasy that never flags.

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