Newlywed Yuna's husband's business venture fails, forcing her to support the household by taking a part-time job as a delivery driver. Her trainer is an older, experienced male driver, more seasoned than her husband. Though his instruction is thorough, he frequently makes sexually harassing remarks, and Yuna gradually finds herself drawn to him. Unlike her husband, his rough and aggressive demeanor captivates her, and soon both her body and heart are pulled irresistibly toward this man.