Petra and Matías have been married for twenty years. She is a cellist and fond of spiritualism. He works as a janitor in the autopsy room of the medical school. Petra has a sour and uncompromising character, so that her arguments with Matías are common, although she takes great care of her never to raise her voice to him. Matías, however, does not care what people will say and screams unceremoniously. The neighbors, who are gossipy, are aware of everything that happens in that house. But Matías falls madly in love with a shop assistant. And coincidentally he has the ideal job to get rid of his wife.