A newly married couple who is happy and cheerful came to feel skepticism
about married life due to role sharing and lack of understanding each other.
As Cheol-Su stays out one night, they decide to divorce. A couple who are
their friend make them move to upstairs and downstairs respectively. They
enjoy their freedom without restriction. When their friend couple who leads
ideal married life falls in similar situation like Cheol-Su, Young-Hee finds that
she is pregnant. Young-Hee and Cheol-Su realizes true meaning of marriage
with mystery of life and reconcile.