Just survive September

Everything has its rules. Everything can be managed. Everything is cyclical. These are the principles that the adaptable and resourceful Margaret Hartman has lived her life by. She firmly believes that anything can be survived: even the nightmare of a Victorian house full of ghosts, where she is determined to create a home for herself and her husband, against all odds. For eleven months of the year, this isn't a problem. Until September arrives.
Every September, the walls of the house bleed, the nights are filled with terrible screams, ghosts are everywhere, and the worst evil hidden in the cellar awakens. Before the fourth September, Margaret's husband Hal gives up and leaves, but Margaret stays. This is her house and she's not going anywhere. However, Hal seems to have vanished into thin air.
The Hartmans' daughter, Katherine, arrives at the house, determined to find her father. Margaret tries to hide from her what is happening in the house, just as she has tried to hide her father's violent outbursts from her all her life.
But September has just begun, and the haunting is getting worse…