Following her mother's death and a painful divorce, Annie and her daughter, Emily, move back to her childhood home. At first everything seems fine but then tragedy strikes again on a foggy night when Emily goes missing from her bedroom. Annie claims that she saw something come from the darkness and take her . . . a creature. Nobody believes her. When Emily's body is nowhere to be found, Annie becomes the prime suspect and is sent to a correctional hospital. She must now escape the hospital and return to the house to confront the creature that has stolen her daughter.