Boses (Voices) is the story of a musician named Ariel who offers violin lessons to a child of the slums. Through the violin, the abused child Onyok is able to get back his voice from a mute, desensitized existence. A violin teacher and his student, a mute 7-year old abused child in a shelter, develop a friendship stemming from their love of music. Ariel discovers the immense talent of Onyok hiding behind a veneer of silence and pain caused by an unhappy and cruel father. In the developing relationship of teacher and student, both characters reveal more of themselves that otherwise may have remained unspoken. They discover each other's strengths and failures through the violin lessons.