Although his murdered friend was by all accounts a scoundrel, Edward Wales is determined to trap his killer by staging a seance using a famous medium. Many of the 13 seance participants had a reason and a means to kill, and one of them uses the cover of darkness to kill again. When someone close to the medium is suspected she turns detective, in the hope of uncovering the true murderer.
as Richard Crosby
as Helen 'Nellie' O'Neill
as Madame Rosalie La Grange
as Mary Eastwood
as Sir Roscoe Crosby
as Lady Alice Crosby
as Inspector Delzante
as Dr. Philip Mason
as Helen Trent
as Brandon Trent
as Edward 'Ned' Wales
as Howard Standish
as Grace Standish
as Professor Feringeea
as Commissioner Grimshaw
as Chotee
