On their way to a family get-together, the Herring family are in a bad car accident, waking in a terrifying, dark basement. Something is there with them. Caged. And it craves human flesh. With a mysterious overseer aiding the creature like a pet, the family must work together to find a way to defeat them both and make their escape.

فیلم داستان یک دانشجوی پزشکی است که از بیخوابی رنج می برد، او پس از نقل مکان با دوست پسرش، خود را گرفتار یک موجود شیطانی می بیند و ...