Because of an accident, Freya Stahler got knocked up by a stranger and gave birth to a pair of genius twins. To raise the babies, she signed a contract with a mysterious Mr. Fitzgerald and got married with him, but she had never met the man in person. Five years later, Kieran Fitzgerald wanted to divorce her. When they finally met for the first time, Freya found that her twins resembled this nominal husband a great deal.