When her estranged mother dies by suicide, Elly is forced to return home from volunteering as a nurse abroad. Determined to sell the family home and get her life back on track, she finds herself haunted by terrifying visions of her mother. Consumed by guilt and eager for a quick escape, Elly accepts the offer from Alma as a temporary caregiver to look after the comatose Ms. Ambrose in her isolated cabin. But Alma has nefarious plans for Elly and she soon is confronted with Mary Lynn, a witch hunter who is hellbent on lifting the demonic curse that has plagued her family for generations. Elly discovers that Ms. Ambrose has a history in the black arts, as well as a mysterious connection to Elly’s mother. As she tries to unlock the truth with her friend Beth, it becomes all too clear that Elly was lured to the cabin under false pretenses.