Her mother, who is seriously ill, dies in a fire, which devastates the well-behaved woman Anna (Emily Browning) and even attempts suicide. After a period of mental recovery, Anna is allowed to return to her long-lost home, home to her father, Stephen (David Strathairn), a writer, Alice (Ariel Kebbel), her intimate sister Alex (Arielle Kebbel), and her future stepmother, Rachel (Elizabeth Banks), her mother's former nurse. During this time, Anna continues to see the tragic and terrifying figure of her mother, and her friend Matt (Jesse Moss) claims to have seen everything on the night of the fire. All indications are that Anna's mother did not die in an accident, and the sisters naturally locked the killer on Rachel's body.
Not long after, Matt was killed. Clouds re-hung over Anna's family. This poor girl who is on the verge of collapse, between the real and the unreal...