동구와 춘영의 딸 은성은 성공을 꿈꾸는 무명 배우다. 극단에 들어온 지 3년, 여전히 무대 뒤에서 일하고 있지만 언젠간 자신의 연기를 세상에 보여줄 날을 꿈꾼다. 정애와 기석의 아들 선우는 할리우드에서 촉망받는 영화감독으로, 목표로 한 일은 언제나 이루고 만다. 은성과 선우는 서로 사랑에 빠지고 결혼을 결심한다. 하지만 사돈지간이 될 동구와 선애가 30년 전 이혼한 부부라는 사실이 밝혀지고, 부모와 자식은 결혼을 놓고 갈등한다.
Eun Sung, the daughter of Dong Gu and Chun Young, dreams of becoming successful, but she is an actress that nobody knows. It has been more than three years since she joined the theater with an ambitious dream, but she still has to put up posters and clean the theater and only gets to practice when the other actors are not around. Sun Woo, the son of Jung Ae and Ki Seok, is a promising Hollywood film director who always achieves his goal. Eun Sung and Sun Woo fall in love with each other and decide to get married. However, they realize Dong Gu and Jung Ae were sworn enemies who divorced 30 years ago. This ill-fated relationship between parents and children fights over their marriage. The story of how people who hate each other the most become the wildest, weirdest, yet hilarious family begins now!