1960s, Arden feels invisible among the boys of his strict Catholic orphanage. Insecure of his voice, Arden pretends to sing by mouthing the words. When the the arrival of Mr. Stevens, the new music teacher, Arden is quickly discovered. Mr. Stevens offers to teach Arden how to sing and soon a friendship is formed. As Arden becomes more confident and outgoing, the sense of freedom pushes him to become the opposite of whom he used to be, will Arden succeed in finding his own voice?