A teacher arrives at a humble school in the Buenos Aires suburbs to serve as a substitute. There he meets Sofía, a gifted 7-year-old girl.

A teacher arrives at a humble school in the Buenos Aires suburbs to serve as a substitute. There he meets Sofía, a gifted 7-year-old girl. The teacher quickly notices that Sofía may be a case of hidden talent in that environment and decides to do something to help her. He will find a lot of obstacles from a society that is not prepared and will undertake a quixotic fight to achieve his goal: That Sofía's intelligence is not wasted.—Lahaye FIlms