Alice Lantins (Virginie Efira) is 38 years old. She's beautiful, ambitious, and has almost everything going for her to become the next editor-in-chief of Rebelle magazine. The only obstacle: her uptight image. When Balthazar (Pierre Niney), a young and charming barely 20 year old crosses Alice's path, she decides to seduce him to show everyone that she can be carefree and relaxed. Her scheme has the desired effect on her colleagues, but will she get caught at her own game?