In the countryside, at a Catholic Church, luxurious cars come rolling in. A wedding is set to take place between Ji Hong and Yu Ri. The couple met as music club members at their university. Their friends from their university days are all arriving, most of whom they haven't seen in 10 years.

Seung Ho is now a lawyer and married. Hyeong Woo is now a university professor who is persistently single. Kyeong Ho is now a PD at a television station. Seong Ju is now a businesswoman who brought along her boyfriend 12 years her junior. Min Hee has a stable family.

All of these friends are in the middle thirties. During the wedding, the friends notice that one person from their music club, Jeong Hee, is missing from the wedding. After the wedding, all the friends gather together at the vacation home operated by Ji Hong and Yu Ri. During the evening a young girl named Mi Rae appears at the vacation home. She informs the group that Yeong Hee was her mother and she died in a car accident one month ago. Furthermore, she tells everyone that she came here to meet her father. Tension, shock, and surprise then overtake the gathered friends as they recall their relationships with Yeong Hee.