When Grace first sets eyes on the imposing Gothic Mordenhyrst Hall, she is struck with an overwhelming sense that something doesn't want her there. Her fiancé's sister heads a coterie of Bright Young Things whose frivolous lives hide a sinister intent. Simon, Grace's fiancé, is not the man she fell in love with, and the local villagers eye her with suspicion that borders on malevolence.

Her friend, Coralie, possesses the ability to communicate with powerful spirits. She convinces Grace of her own paranormal gifts - gifts Grace will need to draw deeply on as the secrets of Mordenhyrst Hall begin to unravel.