In order to repay the debts of her beloved husband, Mariko requests a loan from her former classmate Anzai who has become a successful entrepreneur. In return, she agrees to live with him for three months. She learns of his loneliness, and her attraction to him grows.
Photographer Tadashi (Shinsuke Akagi) and design company Yuko (Mariko Junko) who are working part-time are married people who have both built ordinary households. However, as they happen to meet each other, they gradually become more and more attracted to each other.
The touching romance between a middle-aged single guy and a woman with bipolar disorder. Iwata abandons his dream of becoming a guitarist, and works as an apartment building janitor. He spends his days living modestly as he deals with his unglamorous work. One day, he meets tenant Yumi when she returns home wasted.
