Alone follows a writer seeking peace and solitude in the countryside in an attempt to recover from tragedy and finish her book. However, as the welcoming country house turns into a living hell, she soon realizes that her inner demons are not the worst of her problems.
Amber Gray catches the attention of an elite group of students during her first semester at university. During the initiation, Amber and the York Witches' Society unintentionally awaken an ancient evil that has been waiting to finish the job it started centuries earlier.