With his company in financial trouble, a husband has no choice but to beg Yano, a former subordinate who now runs a major corporation, for help. He knows Yano resents the harsh treatment he received when he joined the company as a new graduate. In return, Yano orders him to surrender his wife Reiko every Saturday. The terrifying arrangement has only two rules: she must return before the last train, and her husband must never ask what happened.