s it OK to covet your neighbor's wife? Chae Song Ha (Yeom Jung Ah) and Ahn Sun Kyu (Kim Yoo Suk) seem like they have a perfectly successful and happy married life. Song Ha is a marketing team leader at an ad agency, and Sun Kyu is a doctor. Although Song Ha keeps perfect order at both her work and at home, she is getting bored with her life. One floor down in the same apartment building, Min Sang Shik (Jung Joon Ho) and Hong Kyung Joo (Shin Eun Kyung) also appear to the outside world to have a good marriage.