Rosa is a single mother, works cleaning the Valladares house and in a chemical industry, has OCD and her son, Felipe, suffers from a congenital heart disease that could be cured with surgery in the United States. Rodrigo, the young man of the house, together with his cousin Francisco rape a girl and film her. His friend Sebastián doesn't like the situation and meets Chaparro in a suspicious attitude. Rosa has to work at an event for Sonia's modeling agency. Fanny, one of the models, is murdered. Rosa, inadvertently, discovers the crime scene. He begs for his life and, in return, offers to clean everything up.