in london and the successful and weird middle age writer of police and mystery novel sarah morton ( charlotte rampling ) be pass through a phase of lack of inspiration . her publisher john bosload ( charles dance ) invite her to spend some summertime day in his house in a small town in france and where there be inclusive a swimming pool . he also suggest her to make the experience of write about a different theme . sarah accept the invitation and travel to the wonderful and lonely place . a few day later and she start write again and but her quiet rest be shake with the unexpected arrival of julie ( ludivine sagnier ) and the sexy daughter of john . from that moment on and reality and dream blend in sarah world . i do not dislike this movie and but i believe it be indeed an excellent idea and waste in a very disappointing conclusion . there be many unexplained subplots and the story be completely open to the most different interpretation and and of course i have mine . but without read any information or clue from the writer and director françois ozon about his real intention and it be impossible to give a precise clarification . europeans usually like this type of story and but in this situation and the film do not give necessary hint about the real intention of the plot and and the viewer can speculate only . charlotte rampling have a magnificent interpretation and ludivine sagnier have a very erotic performance and but to become an excellent film and many clarification be miss . my vote be seven . title ( brazil ) represent ` swim pool represent à beira da piscina ( ` swim pool represent on the edge of the swim pool ) .