Sang-woo goes home feeling down after being dumped by Hye-ran. At home, he is surprised to see a strange woman doing the chores. Ji-eun introduces herself as the new housekeeper. Sang-woo feels attracted to Ji-eun, who is open-minded and good looking, but is disappointed to see her act as his father's 'partner'. Then one day, Sang-woo's father passes away while having sex with Ji-eun and Sang-woo becomes an orphan...
