John Finbow, a successful writer, and his wife Kay move into Southcombe Rectory, a large Victorian house that has been empty since the 1960s. It had previously been owned by the Cuthbertson family who had lived there for generations. Their marriage is under strain, as John, 39 would like children before he gets too old, but Kay, 34, does not.
When John is working in his study soon after moving in, he is disturbed by the sight of a young woman...