Chloe Grayden undergoes an experimental procedure to restore her hearing. So she begins to suffer from auditory hallucinations related to the vanishing of her mother.Chloe Grayden undergoes an experimental procedure to restore her hearing. So she begins to suffer from auditory hallucinations related to the vanishing of her mother.Chloe Grayden undergoes an experimental procedure to restore her hearing. So she begins to suffer from auditory hallucinations related to the vanishing of her mother.