This movie was rather interesting. When the movie is in the present-tense it's in black and white (dark, sad) and when the main character reflects on the past it is in color (bright, joy).

Cecile is seventeen and vacationing on the French Riviera with her father who is a womanizer. Both characters live in an a-moral, do as you please, world. Then one day Cecile's father has one of his female friends come to visit who does not share these "free-spirit" values. The father becomes enamored with his friend and because she is not so "free-spirited" decides to marry her. Her presence brings in a moral value system of which Cecile has grown up without and rejects. Cecile, determined to live her self-centered life of self-determined values plots to destroy the relationship between her father and his fiancee. Only after her success of destroying this "moral overseer" does she fall into a realm of somewhat meaningless despair.

Brilliant film, and I believe it's based on a novel.