The arrival of Catherine (Marie-Helene Arnaud), a new student with a troubled past, at an exclusive French girls' school triggers a tumult of emotions for Anne-Marie (top-billed Agnes Laurent) and her friends, especially naïve Monica (Christine Carère), who develops a crush on the newcomer. Trouble arises when Catherine falls in love with Anne-Marie's sister's fiancée, which causes Monica to retaliate in jealousy. ~ Paul Gaita, Rovi