In Mexico, the insecure writer Carlos and his mate, the photographer Ana, are in crisis of relationship, and lodge for a period in Carlos' apartment their common friend and ex-lover of Ana, Tomas, who was traveling around the world for the last years. On the building in the other side of the street, the unfaithful executive Miguel and his sterile wife and former model Andrea are having a troublesome life, and they lodge the former passion of Miguel, the zoologist Maria. After confusions and misunderstandings, the women move together to Miguel's flat, while the men stay together in Carlos' place, disclosing secrets and beginning a war of sexes, where some of them will be hurt.
—Claudio Carvalho, Rio de Janeiro, Brazil