Özet: Diego (Adrían Suar) and Richard (Juan Minujín) are two renowned cardiovascular surgeons who own an important specialist hospital located in Puerto Madero, Buenos Aires. Diego is married to Emilia (Julieta Díaz), a weather forecaster, with whom he has a 14 year old son called Lucas (Tomás Wicz) and an organized family life. Richard is in a ten-year relationship with Betina (Carla Peterson), a fashion designer; they have no children and a more unstructured life. One night, after Diego and Richard are given an recognition for their work at a congress, the two couples go out and have dinner to celebrate. In the restroom, Betina reveals to Emilia that she and Richard are swingers and that they should go to a swinger party with them. That night, Emilia can not stop thinking about it and awakens Diego to tell him. In the following days Emilia tries to be more sexually active and urges Diego to go to the party. Although he is uncomfortable with the idea, he accepts.