1981. A traditional family in a Spain with an incipient democracy. A unique daughter, the fruit of union. And Gonzalo Peña determined to have a second. But his wife, Susana Zunzunegui has another proposal for him: she wants to separate. From that moment on, they have the questionable honor of being the first marriage to be divorced in the country. Then they go from being the Peña Zunzunegui to 'Los Quién', the new surname of a family that remained in project. But Susana is not the only Zunzunegui who breaks with her previous life. Her brother, Esteban, hangs up his habits because he begins to fool around with Candela. And meanwhile, their mother is incapable of assuming so much change and so much displeasure. Her apparent perfect life crumbles when her children confess to her, at the same time, their intentions during a dinner.