Verano en Buenos Aires. Diego es mordido por un perro. Melina por una gata. La rabia exige 9 vacunas.

Sergio, Mali and Luz reluctantly agreed to spend Christmas in the country with their mother; in part because of the guilt they feel about saying no when she has just come out of the hospital after a heart attack, but also because it would be nice to escape from their frustrations for a while.