Following the horrific death of his wife and child, Robert Adams struggles to rebuild a life with his seventeen-year-old daughter, Jenny. Their relationship is tested further when she expresses a desire to contact her mother through a spiritualist and he watches helplessly as they slowly drift apart.

But everything changes when Jenny begins to dream—dreams which take her into another world—a world inhabited by a young girl, imprisoned in a dark attic. A girl Jenny believes is an ancestor whose spirit is reaching out across the generations.

But who is she? What does she want? As Jenny’s behaviour becomes increasingly dangerous and unpredictable, Robert finds himself confiding in Sebastian Tint—an old professor who claims to possess a sixth sense. Together, they employ retired genealogist Jack Staple to trace the family tree, but it is a journey that takes Robert down a road of discovery that threatens to tear their world apart.