Three years ago, Mabel witnessed her father being killed in a car accident by Sharlene, the heiress of the Quinn family. Her mother was brutally beaten to death, leaving the family in torment. Three years later, Sharlene became engaged to the wealthy Frost family but sought true love with a punk. Seizing the opportunity, Mabel took on Sharlene's identity, marrying into the Frost family. Using her new status as the Quinn family's heiress, she planned to exact revenge and make the Quinn family pay for their blood debt.