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.
Director:
Writer:
Conrad Nagel
Richard Crosby
Leila Hyams
Helen 'Nellie' O'Neill
Margaret Wycherly
Madame Rosalie La Grange
Helene Millard
Mary Eastwood
Holmes Herbert
Sir Roscoe Crosby
Mary Forbes
Lady Alice Crosby
Bela Lugosi
Inspector Delzante
Charles Quatermaine
Dr. Philip Mason
Moon Carroll
Helen Trent
Cyril Chadwick
Brandon Trent
John Davidson
Edward 'Ned' Wales
Bertram Johns
Howard Standish
Gretchen Holland
Grace Standish
Frank Leigh
Professor Feringeea
Clarence Geldart
Commissioner Grimshaw
Lal Chand Mehra
Chotee
