After Bridget's violent mental breakdown, her recovery goes off the rails. As a series of terrifying intrusions in her cabin escalates, everyone becomes a suspect, and everyone seems to have a motive for wanting Bridget gone for good...
When the world is under attack from terrifying creatures who hunt their human prey by sound, 16-year old Ally Andrews, who lost her hearing at 13, and her family seek refuge in a remote haven.
