Business tycoon Victoria accidentally hits poor young girl Lily. Noticing a butterfly-shaped birthmark on Lily’s neck and her striking resemblance to Victoria’s younger self, she begins to doubt the true parentage of her spoiled, arrogant daughter Olivia.
At Olivia’s 20th birthday banquet, Olivia teams up with her aunt Evelyn to demand the inheritance. Victoria quietly arranges a DNA test. But Evelyn bribes the doctor to forge the results, letting Olivia keep her identity as the heiress.
Guilt-ridden, Victoria takes injured Lily in. Filled with resentment, Olivia bullies Lily relentlessly. She steals a precious necklace and frames Lily for the theft. Fooled by the setup, Victoria drives Lily away.
Only after Lily leaves does Victoria pull up backup surveillance footage. She is horrified to discover Olivia is the real culprit. Heartbroken and wary, she revisits the lingering mystery surrounding the two girls’ origins.
