Carmen and Alfredo have a wonderful life in Ciudad Satélite, a middle-class suburban area in Naucalpan, State of Mexico; one of México City's suburbs. Their relationship is stable, they get along great, and they have family and friends nearby. A great opportunity for professional advancement requires them to move into the noisy, stressful Federal District (México City proper). Relationships there are cold and calculating as a result of the stress and competition typical of major cities, and this change has a major impact on the couple.