Gareth Berliner

Mog feels a little ignored during the Thomas family's Christmas preparations. When she spots the huge Christmas tree, she freaks out and climbs to the roof, where she refuses to move no matter how hard the family tries.

Suffering from agoraphobia and believing she is being tormented by an alien entity, Caroline must distinguish between reality and mental illness. With the help of her therapist, she summons the strength to leave the confines of her home.