Avery Collins, a plus-size aspiring designer, is humiliated and framed for plagiarism by her jealous colleague Eleanor at Whitmore Fashion House. After being fired, she takes a dangerous slimming serum and transforms overnight, winning the Global Fashion Awards under a pen name. CEO Grant Whitmore, her childhood friend, hires her as head designer. As Eleanor repeatedly sabotages her, Avery learns the serum's effects are temporary. When her weight returns, Grant confesses his love for her true self. Together they expose Eleanor's crimes, win a major client, and get engaged. A month later, Grant has gained weight too, and the couple embraces body positivity and authentic love.