Leigh Whannell writes and directs this supernatural suspense horror prequel starring Dermot Mulroney and Stefanie Scott. Prior to the haunting of the Lambert family, 15-year-old Quinn Brenner (Scott) seeks out noted psychic Elise Rainier (Lin Shaye) to help her connect with the spirit of her dead mother Lillith (Ele Keats), who she believes has been trying to contact her. But with Elise's help, Quinn discovers it wasn't her mother trying to contact her but a malevolent supernatural entity seeking to possess her and in her attempts at contact it may not be the only spirit she has awakened...