A story of friendship, love, marriage, secrets, lies that unfolds between two couples in one apartment during a Sunday 早午餐 that will affect their lives forever.
Former 老友记 run into each other years later and drunkenly decide to make good on their promise to marry each other if they're both still single 由 30 - Only to discover too late all the things they liked about each other have changed.
Clara and 射线, 雷 are newly engaged. As they gather family and 老友记 together for a 晚餐 party to make an announcement, what begins as a celebratory evening turns into disaster as secrets and skeletons surface.