After moving into a new apartment with her mother, Erin fears entering her bedroom and spends her nights on the living room sofa, while her mother is away on a business trip, Erin's Aunt Sara comes to stay with her and finds herself trapped in the middle of the horror that has been haunting her niece. in her effort to protect her niece, Sara starts to questions neighbours and search into past history of the building. She finds the answers that authorities have searched for for many years.