Due to a traumatic childhood experience Anna is estranged from her family and hasn't returned home for many years. With her ailing grandmother and only living relative, Lucy, suffering from increasingly worse symptoms of dementia, Anna moves home to look after her. Soon after, strange things begin happening. Though benign at first, events soon escalate into a nightmarish fight for her life against a malevolent presence. She discovers the ordeal is linked to a dark family secret, a tragic past that's haunted Anna her whole life... and Lucy's fading memories could be the key to solving the mystery and surviving the nightmare.—Official synopsis