Review of Diary of a Chambermaid

This is the most straight-forward film I've seen by the surrealist master Bunuel, and despite its cryptic turn in the final moments, is funny, chilling, and a bit nasty. The story follows an urbane chambermaid from Paris who comes to work at the country estate of a repressed bourgeosie family. She weathers passes from every man in sight and deflects them, but for morally ambiguous reasons. Moral ambiguity is rampant, as it is so often in Bunuel's films, and spread liberally amongst all classes. It's subtly a film about selling out, except that nobody seemed to have any principles to begin with. Good fun. Now tell me what the ending was all about.