John and Grace were engaged as children in a high-society arrangement but never met until a night of poisoned desire. Mistaking Grace for another woman, John spends a passionate night with her that results in a secret pregnancy. Years of hardship and misunderstandings lead them into a rushed marriage of convenience, only for the truth about their 'one-night' bond and their childhood promise to surface. As they reconcile as a family, they must fight the rivals who poisoned them and build an unlikely bond that billionaire power couldn't break. Some fated loves are just written in the stars.