Historical fiction. Mystery fiction. Horror fiction. Welcome to Borley Rectory, the most haunted house in England. It is 1926 and Sarah Grey is personal assistant to Harry Price, London's most infamous ghost hunter. Harry has devoted his life to exposing the truth behind England's many 'false hauntings'. So when Harry and Sarah are invited to Borley Rectory - a house so haunted that objects frequently fly through the air unbidden, and locals avoid the grounds for fear of facing the spectral nun that walks there - they're sure that this case will be just like any other. But when night falls and no artifice can be found, the ghost hunters are forced to confront the possibility that the ghost may be real.