After a road accident in Hungary, the American honeymooners Joan and Peter and the enigmatic Dr. Werdegast find refuge in the house of the famed architect Hjalmar Poelzig, who shares a dark past with the doctor.
Boris Karloff
as Hjalmar Poelzig
Bela Lugosi
as Dr. Vitus Werdegast
David Manners
as Peter Alison
Julie Bishop
as Joan Alison
Egon Brecher
as The Majordomo
Harry Cording
as Thamal
Lucille Lund
as Karen
Henry Armetta
as The Sergeant
Albert Conti
as The Lieutenant
John Carradine
as Cult Organist
John George
as Cultist (uncredited)
Albert Pollet
as Waiter (uncredited)
