A story about the love and married life of six married couples who are pigeonholed into six types of marital relationships!

Han Young Min (Lee Jung Jin) and Min Seo Young (Oh Seung Hyun) were engaged to be married; however, Young Min's ex, Jae Hee (Kim Yoo Mi), dumped their son, Jun, on him. Seo Young broke up with Young Min afterwards because Young Min refused to send his son back to his mother. Jo Min Soo (Lee Yoo Ri) befriends Young Min and helps Young Min adjust to his new life with his son. Young Min and Mi Soo soon realize their feelings for each other and plan to marry. However, obstacles stand in their way before they can do so.

Jang Joon Ha is a man out for vengeance. In one day, Joon Ha lost the two most important people in his life. His brother, Young Ha, was wrongly convicted of a crime that he did not commit. The woman that he loved was murdered and his brother was the prime suspect. Joon Ha, an attorney, sets out to prove that someone else committed the crime.

Jang Joon Ha is a man out for vengeance. In one day, Joon Ha lost the two most important people in his life. His brother, Young Ha, was wrongly convicted of a crime that he did not commit. The woman that he loved was murdered and his brother was the prime suspect. Joon Ha, an attorney, sets out to prove that someone else committed the crime.

Fatal love strikes us out of a sudden and helplessly takes us deep down into the sea of fervor, giving us no choice but to yield. This drama beautifully unfolds the forbidden passion between a teacher and a student.

Chae Won (Kim Ha Neul) and Kwan Woo (Kim Jae Won) meet for the first time at a rural seaside village flower festival. They fall in love at first sight, not in their dreams have they known that Chae Won is the teacher at Kwan Woo's high school. The second time they meet is at the classroom where they realize the situation and become bewildered and embarrassed. The love story between the two young people is overlapped with Kwan Woo's tearful success story and this inspire the viewers with high emotion.

Kwak Sun Young gets into a car accident and develops this ability of detecting a man's past from his body odors. She divorces her husband when she finds out about his long history of girlfriends. Sun Young then sets up a business where she helps women and even the police track down suspicious men and husbands.