Thea Sterling descends for a marital trial, finds her fiancé cheating. She flash-marries ride-share driver Caspian Lowell for three months contractually. Thea has unparalleled medical skills. Caspian Lowell is the Crown Prince. Suspecting Thea, he hides his identity. Thea is challenged by her biased parents and vain sister, but fights back. She saves Caspian's brother, Albie Lowell, from poison. Caspian develops feelings, eliminates villains harming Thea. They fall in love.