To save her brother from imprisonment, orphaned Serena is reluctantly forced to marry Vincent, the notorious libertine of the powerful Owens family, in place of her sister. On their wedding day, Vincent is shocked to recognize Serena as his long-lost first love, but she seems to have forgotten him. As they navigate their complex and secretive past, old feelings resurface, and they must confront the web of secrets and emotions that threaten to unravel their new marriage.