Kang Jae is a wealthy businessman and gangster and Mi Joo is a plastic surgeon. These two meet after Mi Joo mistakens Kang Jae as being her sleazy brother-in-law. Kang Jae just happens to be the boyfriend of Mi Joo's pregnant neighbor, Yoo Jin. Sae-yeon meets Mi-Joo and falls in love with her feisty attitude. Kang-Jae works for the father of Sae-Yeon who is a gangster. Mi-Joo and Kang-Jae fall in love.