A young man named Eric Marshall goes to teach a school on Prince Edward Island and meets Kilmeny, a mute girl who has perfect hearing. He sees her when he is walking through an old orchard and hears her playing the violin. He visits her a number of times and gradually falls in love with her. When he proposes she rejects him, even though she loves him in return, believing that her disability will only hinder his life if they were married, despite his protests that it wouldn't matter at all. Meanwhile, Eric's good friend David who is a renowned throat doctor, comes to the island and visits Eric. He examines Kilmeny, and says that nothing will cure her but an extreme psychological need to speak.
