To strengthen their couple on the verge of breaking up, Bastien and Elise set off for a hike in the woods. A few years later, Bastien has become cynical and dark. He has a relationship based on voyeurism and sadomasochism with a woman called Sarah. One night, by continually pushing their experiences farther, the young woman is shocked and decides to distance herself from her lover. She then tries to get rid of him but he ends up losing his temper and imposing her the narrative of his hike with E...