Married couple Jack and Ali Gardiner move to a self-sufficient spiritual commune in the English Fens, desperate for fresh start. The local village is known for the witches who once resided there and Rosalind House, where the commune has been established, is a former psychiatric home, with a disturbing history. When Jack and Ali arrive, a chain of unexpected and unexplained events is set off, and it becomes clear that they are not all that they seem. As the residents become twitchy, and the villagers suspicious, events from the past come back to haunt them, and someone is seeking retribution.