Soo-Min works as a nutritionist at a food company. She seems to live a perfect life. Her husband Jin-Woo is a successful analyst and their son currently studies abroad. Yet, Soo-Min is not happy with her life. She feels that Jin-Woo and her son ignores her. Soo-Min then meets Sang-Hyun. She used to be friends with Sang-Hyun. His wife was killed by a drunk driver. He is now in Seoul.