Talented young designer Sophie Carter enters a 12-month contract marriage with billionaire Ethan Blackwood to pay for her father’s life-saving heart surgery, secretly believing he destroyed her family’s design studio five years prior. Living under the same roof, they navigate a cold, stern matriarch, judgmental public gossip and awkward, unexpected moments of closeness. As Sophie digs for evidence, she discovers the true culprit is Ethan’s half-brother Victor, who framed Ethan for the fraud that ruined her family. Meanwhile, Ethan has already uncovered her real identity and revenge plan, but chooses to team up with her instead of turning her away. The two expose Victor’s embezzlement, forgery and hidden role in his father’s death, turning their transactional marriage into genuine love. After justice is served, they tear up the prenuptial agreement and marry for real — with no expiration date
