Two friends Nacho and Denis reunite after 20 years. They’re both married and while Nacho is successful, he and his wife yearn for a child. Denis and his wife are persuaded to become surrogates… Nacho is married to Marta and they are a perfect bourgeois marriage, with an excellent job and a good social status, whose ambition is to get pregnant. On the contrary, Denis and his partner Carmen live from day to day while saving to be able to open a gourmet restaurant. Nacho proposes that they be his \"surrogate belly\" in exchange for the money they need. But the proposed barter will force them to discover themselves at the risk of losing the apparent stability they now have.