A man is making a research about the importance of familiar environment in children's future. First, he interviews a prostitute, Rosa, who's in jail because of the murderer of her pimp. She was a poor child, living only with her father. He wants to send his daughter to school, but they don't find place and the father has to leave the child with the neighbour, while he's working. But the man is hit by a car and dies. Years later, Rosa finds herself alone after her adoptive mother dies. A young man from his same vicinity, wants to help her, after hearing her singing. But the truth is that he wants to turn Rosa into a prostitute and live from her money. The other story is about a boy, who goes with his father to sign up in the school.