Two friends meet after sixteen years, but neither one is who he once was in the past. Both have partners, but they are very different. Nacho and Marta are a perfect bourgeois married couple with good jobs, but they are unhappy because they are unable to get pregnant. The other couple, Denis and Carmen, are freer and more liberal; they live hand to mouth and are trying to get money to open a restaurant. When Denis offers to be their surrogate parent for the money they need to open the restaurant, the two couples will have to face their shortcomings and seek the happiness they have not yet found, even if it means breaking their own rules - even when the pregnancy is far along.