Alice Lantin (Virginie Efira) is a 38-year-old single mother. She is beautiful and motivated, but in the eyes of her ex-husband, she is boring, so she devotes herself to the work of the magazine. Alice was qualified to be the next editor-in-chief, but her boss and colleagues felt that her image was too old-fashioned and stereotyped, and she was frustrated. On a plane, she met Baltazar (Pierre Niney), a young and handsome guy who had just turned 20. When they were together, they were seen by their colleagues and misunderstood that she had a fashionable sister-brother relationship, so their attitude towards her also changed. Alice felt that this accident was the key to her promotion, so she took the initiative to start the plan to seduce Baltazar. The unintentional encounter turned into an increasingly intense entanglement.