Dr. Markway, doing research to prove the existence of ghosts, investigates Hill House, a large, eerie mansion with a lurid history of violent death and insanity.

Ace crime reporter Watling tries to discover the identity of a notorious jewel thief, but his informant is murdered. At a house party, Watling helps detective Adam expose the criminal.

As the Boer War ends a South African soldier hides a cache of diamonds he finds on a body. He returns to the town he left three years earlier where…