She's also an established investigative journalist on Elle magazine and is writing an article about young female students resorting to prostitution to finance their studies.
As she questions two young women during her research a parallel between Anna's bourgeois life style and the female students becomes clear.
A provocative script, directed by young Polish film-maker Malgoska Szumowska, explores the roots of this manifestation of modern bourgeois hypocrisy
It's very well acted, with Juliet Binoche giving a major performance.
She explores the full range of emotions, from anger to compassion, and it's hard to imagine anyone who could play them better.
Prostitution seems nothing new, it's still the old game of sex for sale.
But in a society ruled by greed economy, it has tragically worsened.
That is why the insight into modern feminism at the film's heart is so inherently fascinating - not least because it makes no hasty and simplistic moral judgements.