Many media have made a variety of depictions and interpretations of Princess Diana's life, presenting her short life in various versions. This film takes a different approach, starting from Diana's stepmother, Renee, to introduce her influence on this English rose. Renee came from a middle-class family, but by virtue of her charm, she made an early appearance in the social circle and promoted to the top. After a brief marriage, she met Diana's father, Sir Spencer, and tied the knot. Stepmother is always a difficult role, young Diana and the new stepmother do not have a harmonious relationship, their contradictions continue to escalate, Diana directly drove her stepmother Renee out of the house after her father's death. But after Diana's divorce, she repaired her relationship with her stepmother. What made her change?