Overview
In 1921, in London, the arrogant and skeptical Florence Cathcart is famous for exposing hoaxes and helping the police to arrest con artists. The stranger Robert Mallory tells her that the headmaster of a boarding school in Rookford had invited her to travel to Cumbria to investigate a ghost that is frightening the pupils to death. He also tells that many years ago there was a murder in the estate and recently pupil Walter Portman had died.