As a hospital coordinator, Ga-yeon fell in love with a doctor at the hospital she was working in and they had an affair even though the doctor was a married man. When the director found out, she was fired. For over a year she tried to find another job, but her mental uneasiness eventually made her give up and she became a recluse.
A year later, in the spring of 2013, her younger sister, Hye-na, and her first love Yunwoo come to her.
A story about the dark side of today’s youth and serious life events happening around Ga-yeon.