The story revolves around two very different cousins, Naima and Sofia. Sofia, the elder of them, 22 as we learn later, decided to make a living as a good time girl. With her great looks, although much enhanced through surgery, she is very successful in getting in contact with rich, elder men. By accepting expensive presents from them and staying for awhile in their circle until the get bored and find a way to get rid of her, she lives well without a regular work.
This summer of the story she stays with her younger cousin Naima in Cannes where she starts to give Naima little bits of advise how to get around in the world. Naima, only 16 at the time, is rather naive at the beginning, but in the course of the summer, she gets wise to Sofia and starts to see her in a much less admiring light.
Although the title of the film points to Sofia, it is Naima, who is the more interesting character. Sofia already had made her decision how to tackle life, Naima is drawn between the "glamourous" life, which Sofia seems to lead, and normal friendships like Dodo, a young, probably gay, guy who wants to become an actor. And jobs, as her mother, who works as a maid at a very fancy hotel and restaurant, who offers her an internship at the restaurant's kitchen.
Naima is for some time very confused by the sudden mixup with the life of two 40 year old men, one the owner of a yacht, the other his paid companion. While the owner Andrè certainly prefers Sofia and soon has sex with her, the other one, Phillipe, is more respectful towards Naima and figures correctly, that she is still a minor, and keeps his distance.
The whole story is a coming-of-age drama around Naima, who likes her cousin, although she sees things through her, that are shocking.
I didn't know the background of the actress who played Sofia, but I found she looked perfect for the role. Now I know why. As for the young girl who played Naima, she has the more demanding acting role and she handles it very well. Recommendable film!