Little Chula lives with her parents and sister in a beautiful house, in the courtyard of which grows a Drunken tree, whose fruits are poisonous. Because of him, the neighbors are afraid of the Chula family: the beautiful mother is considered a witch and forbids other children to communicate with their sisters. But this does not prevent the girls from being happy: they play, dream, watch TV and follow the new maid Petrona, trying to solve her mystery. Why is Petronas silent all the time? Why doesn't her family have money for a TV? Why does she communicate with young people whom adults look at with condemnation? And why did she take the photos of the sisters from the album?