50-year-old Ximena has learned to live on her own to keep her illiteracy as a secret. 26-year-old Jackeline, an unemployed teacher, offers to read the news for her. The young woman soon tries to teach her reading, but this new task looks quite complicated. One day, Jackeline finds a letter that Ximena has been keeping as her only treasure: a message her father had left before abandoning her many years before. Due to this mystery, the two women embarks in a learning process in which the role of the teacher and that of the student will continuously reverse.