Two couples (played por Andrew Scott, Cillian Murphy, Eva Birthistle and Catherine Walker) appear to live in marital bliss until cracks begin to appear in both seemingly steady marriages.
Former friends 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 por 30 - Only to discover too late all the things they liked about each other have changed.
Clara and rayo, ray are newly engaged. As they gather family and friends together for a cena party to make an announcement, what begins as a celebratory evening turns into disaster as secrets and skeletons surface.