Martin and Lea wake up in the same bed a few hours after meeting each other. Martin, a warehouse-man, is passionate about classical singing. He takes singing lessons to become an opera singer. Lea, more down-to-earth, provides young girls for Lucien, who in return provides for all her needs. In a word, she is a matchmaker. Martin is fascinated by Leah, but the converse is not true. Undaunted, quite the contrary, he arranges to see the beautiful woman. His obstinacy and love of singing eventually moved Léa. He would like her to change her life, but the vague plans for the future that he submits to her do not seduce her. Martin and Lea leave each other .