Having broken up with his wife with a mental illness, newly single dad Richard (Nicholas Tucci) invites his new partner Coral (Camilla Rutherford) to live with him and his children in their remote house, up in snow-covered mountains. With the sudden departure of their mother, the children are unhappy with the new set up – rebellious teen Donna (Page Ruth) is suspicious of the new woman in their lives and is rarely home, while hearing-impaired Matthew (Keaton Tetlow) is forced to share this bleak & lonely space with the strange newcomer – who sports a disturbing plastic massaging mask and is distant & disinterested in her inherited family. As the hostility grows and claustrophobia sets-in, the tension reaches boiling point and the family is confronted by an ominous presence, a dark, deadly malevolence… what is this terrifying supernatural force and what does it want?