害羞的男孩阿里埃尔缺乏经验，被聪明姑娘伊萨贝尔千方百计地拉入到巴黎的夜生活中。

Barbara, a young girl, lives in an old country house with her father and her teacher. One night, she dreams that a fireman enters her room through the window. Having grown, Barbara leaves her father to travel across the world, before coming back to her childhood fantasies: one day, she calls the firemen, and locks herself with one of them in her bedroom.