An entomologist returns to Buenos Aires, after a long expedition in Africa. Upon arrival he finds that his wife, who had not heard from him in a long time, has remarried.
A teacher encounters the suspicion of her students when she takes charge of an elementary school. At the same time that he tries to conquer them, he begins a romance with a professor who was a former student.
The story of a middle-class married couple who really loves each other, but who are unable to transmit their feelings, while the routine corrodes their relationship.