Supernatural horror starring Emily Browning as Anna, a young woman who returns home to her family, including her much-loved sister Alex (Arielle Kebbel), after a spell in a mental hospital following the death of her mother. Her recovery is hampered by the presence of a mysterious new stepmother, Rachael (Elizabeth Banks), and various ghostly happenings in the family home. When Anna sets out to discover the true identity of her father's new wife, she uncovers a truth more shocking than she could have imagined.