With a body and voice that’s easy on the eyes and ears, popular music critic Sung-hee announces his plans for divorce on live radio without informing his wife. He takes off to a seaside town with long-time friend Dong-min but when his wife doesn’t answer his call, he rushes back home. He arrives only to be greeted with a letter and his wife is nowhere to be found. Sung-hee wanted to divorce his wife in style but his wife jumped the gun and left him a day early. With his pride in shambles, he decides to go on a search for his wife. To his bitter surprise, he discovers sides of his wife that he never knew about including a supposed brother of hers.

The lovely and promiscuous textile professor Eun-sook has all the male professors wrapped around her finger. It also helps that she has slept with most of them. Eun-sook is also a member of an environmental awareness group. When the popular comic book artist Suk-gyu joins the group, he arouses the jealousy of Mr. YOO, one of the other member who fears that Suk-gyu will steal Eun-sook from him. It turns out that Eun-sook and Suk-gyu attended the same junior high school where they share a secret and tragic history. Back then, Eun-sook was Suk-gyu's older brother’s girlfriend. But after Eun-sook decides to sleep with Suk-gyu as well, the older brother's best friend dies in an accident in which both of them are involved. As the jealous MR.YOO starts to investigate Eun-sook and Suk-gyu's past, will their secret be kept? Will they get together again?