Little rat at the Opera de Paris , Delphine ( Delphine Desyeux ) is ecstatic. At twelve, she has been chosen to play the role of Galatea in the next ballet prepares the Palais Garnier . One evening, a small group of dancers , defying prohibitions, ventures into the roof of the Opera . But jealousy, one of the girls closed the door locked, preventing Delphine back ... This grea...