When Morwenna receives a troubling call from her reclusive Aunt Bethan, she reluctantly returns to the family's crumbling chateau by the French seaside. Bethan has lived there alone for years, ever since her husband vanished in circumstances the locals are still gripped by. Some whisper she killed him. Others claim something older, and far worse, took him. What Morwenna finds is a house warped by grief. And the deeper she digs, the more the chateau seems aware of her presence. Worse, it seems drawn to her children. As strange events escalate, Morwenna must uncover the truth about her uncle's fate and the beings the villagers believe still haunt the estate --- before history repeats itself. Because if the tales are true, something long buried is stirring…and it has been waiting for her family to return.

Alfie wakes up one night to find his twin daughters at the foot of his bed, claiming there's a shadowy figure in their bedroom. When no such thing can be found, he assumes the girls had a nightmare. He isn't surprised that they're troubled. Grief has made its home at Hart House: nine months ago, the twins' mother, Pippa, died unexpectedly. But the situation quickly develops into something more insidious. The girls set an extra place for him at the table. They whisper to him. They say he's going to take them away. Alfie calls upon Julia --- Pippa's sister and a psychiatrist --- to oust the malignant tenant from their lives. But as Alfie himself is haunted by visions and someone watches him at night, he begins to question the true character of the force that has poisoned his daughters' minds, with dark and violent consequences.