The first two thirds of this film struck me as merely boring depictions of the white European borguasie partyin' down, reminiscent of the worst few moments from Antonioni's ouevre and a predecessor, perhaps, to most of Fellini's work post-"La Strada".
The last third of the movie, however reveals this to be the beginning of Chabrol's transformation into the French Hitchcock. By the end, the autuer I think most philosophically informed by this work is Woody Allen: "Luck is everything!"