A traveler arrives at the Usher mansion to visit his old friend, Roderick Usher. Upon arriving, however, he discovers that Roderick and his sister, Madeline, have been afflicted with a mysterious malady: Roderick's senses have become painfully acute, while Madeline has become nearly catatonic. That evening, Roderick tells his guest of an old Usher family curse: any time there has been more than one Usher child, all of the siblings have gone insane and died horrible deaths. As the days wear on, the effects of the curse reach their terrifying climax.
Gwen Watford
as Lady Usher
Kaye Tendeter
as Lord Roderick Usher
Irving Steen
as Jonathan
Vernon Charles
as Dr. Cordwall
Connie Goodwin
as Louise
Lucy Pavey
as The Hag
Robert Woollard
as Greville
Keith Lorraine
as George
Tony Powell-Bristow
as Richard