A visit on an old school friend finds a man plagued both by bad health and a gentle tapping from beyond his wall.....

A man's mother is brutally murdered but, except for the finger marks around her neck, no trace of the killer can be found.

A man and his daughter come accross an apparently mad, ill woman in a London park.

One night, four men arrive at a notorious, reportedly haunted, house and prepare for a duel to the death.

A man explains to his doctor how he came to believe in ghosts.