How wonderful it is to see this fine actress carry a film and carry it so beautifully.

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.

Unshakable, witty and deeply felt, the film will be paying emotional dividends for a long, long time.

One of the most extraordinary films you will see this year. Take that as you want.