Billy MacLellan

16-year old Arielle's world is rattled when her mother mysteriously returns, driving a wedge into the seemingly perfect relationship she has with her father while unraveling family secrets hidden long ago on their isolated foothills farm. (imdb)

The story of a family struggling to survive in a world terrorized by a deadly, primeval species who have bred for decades in the pitch darkness of a vast underground cave system, hunting only with their acute hearing. As the family seeks refuge in a remote haven where they can wait out the invasion, they start to wonder what kind of world will remain when they're ready to emerge.