Jung-seo, an artist who draws vampire webtoons, heads to her father, Young-joo, who runs a restaurant in Mukho Port in Gangwon-do. She brings a saxophone that her mother, Mi-young, had kept as an IOU symbol. There, Jung-seo gets tangled up in her family members' unfamiliar desires. As she confronts her roots and shaky presence, Jung-seo makes a choice for herself.
Inspired by a true story, ‘Oversteer’ follows the journey of Wind, a young man whose passion for cars leads him to fall out with his family, leading to a world he’s unprepared for. As he navigates financial struggles and personal challenges, Wind finds support from unexpected sources. The film explores themes of perseverance, friendship, and the pursuit of one's dreams, offering a heartfelt and inspiring narrative in a car racing world.