Lemming (2006)

If you found yourself caught up in the ominoso peeper threat of Michael Haneke's Caché, only to trip on its lack of logic and its racial piety, then check out this French domestic erotic mystery, Lemming; it's simpler and better. A model young bourgeois pair, played by Laurent Lucas and the beautifully unglamorous Charlotte Gainsbourg, host a dinner for a toxic middle-aged couple, led by Charlotte Rampling as a ragingly unhappy femme fatale. The movie, which has the slightly glum perversity of early Chabrol, is a dream of betrayal, with the squirmiest attack-of-nature tableau since Willard.