After a young boy dies of diphtheria, a medium tells his family that his spirit has an urgent message so they consult the Society for Psychical Research where they soon learn what the boy is trying to say.
An American couple, the Scotts, visit longtime friends the Bellamys in London and are unwittingly reenacting the tragedy of Captain Randolph and Lieutenant Otis in Victorian England.
Paranormalist David Jordan calls on retired barrister Clifford Barrington about a ghost sighting he had many years ago while his photographer Samantha keeps having visions of Barrington's late first wife warning her.
This plot is 'possession' by the soul of a person from the past of another person alive or of a person from the past communicating through the body of a person in the present?