Colonel Mortimer returns to his family after a long spell in India to find his young son in bed ill, and tormented by a wailing voice... but is it in the boy's imagination or not?
Garrett, a young librarian, is hired by an impatient man to find an old tractate - so that he can cheat the real heirs out of their estate... but the book is haunted by the ghost of the previous owner.
Rich Americans visiting Europe lease an old English country house and find it comes complete with a ghost - who finds these strangers more alarming than they find him.