Grandma Geum-boon lives alone for life. Her roommate Ji-woong is a professional part-timer. A project to live with the senior who lives alone, which started to save some rent, repeats the difficulties and overcomes. Through that, they get close to each other.

Video journalist Hyun-Soo goes to the ER of a hospital hoping to gather material for a documentary film about death. During her visit she comes across Yoo-Jin a woman who is just about to pass away. As fate would have it she also encounters the woman's boyfriend Ji-hoo soon realizing that he used to be an old friend of hers during her elementary school days. A while later, Hyun-soo observes the seemingly ignorant stare of Ji -Hoo while Yoo-jin passes away, which leaves behind an unforgettable impression inside of Hyun-Soo's mind. One day while Hyun-Soo is in the middle of making preparations for her marriage, she receives a phone call from Ji-Hoo. During the following conversation she discovers that Yoo-jin actually committed suicide because she could not stand the fact of loving someone other than Ji-Hoo ...