A young woman with no notable qualities is struggling to find her place in the world. She fails to land a job at her mother's lover's law firm, but becomes entangled in a relationship with a wrestler who promises her a life of luxury. When her partner is arrested, she turns to attention-seeking and fabricates a story of a train attack. Meanwhile, a young boy on the cusp of manhood grapples with his own identity through a chance encounter with the young woman.

La fille du RER
The film explores the devastating consequences of a false accusation of anti-Semitic violence, as it sparks a media frenzy and wreaks havoc on the accused's life.