'A belles dents' (= French for something like 'voracious') offers us a pretty flat story, that doesn't need any further exploration.
Much stronger is this film's picturing: set in a very, very mid-Sixties style, it shows at times some quite original scenes. Complete with a touch of fashion, as was fashionable in those days. Surely warming the heart of everyone around at the time.
Female lead Mireille Darc always easily adapts to fashion, by the way. Thus adding an extra 10% to her performance. In fact, many of her films state in their credits that 'miss Darc was clothed by ......', followed by the name of a famous lady's fashion designer.