The Unheard follows 20-year-old Chloe Grayden (Lachlan Watson), who, after undergoing an experimental procedure to restore her damaged hearing, begins to suffer from auditory hallucinations seemingly related to the mysterious disappearance of her mother. As Chloe delves deeper into the investigation, she uncovers a web of lies and secrets that threaten to destroy the very foundation of her life. With no one to turn to for help, Chloe must confront the dark forces that are slowly encroaching on her world, all while fighting to save herself from the horrors that lurk beyond the boundaries of her hearing.