
Sir Borotyn, a prominent Prague resident, is discovered murdered in his home, with all indications pointing to a vampire assault. The victim's friend, Baron Otto, and the physician who analyzes the body, are certain that the vampire is the mysterious Count Mora or his daughter. Receiving little help from the law, Professor Zelen, an expert in the occult, is called in to assist with their investigation.
Genres:

Lionel Barrymore as Professor Zelin

Elizabeth Allan as Irena Borotyn

Bela Lugosi as Count Mora

Lionel Atwill as Inspector Neumann

Jean Hersholt as Baron Otto

Henry Wadsworth as Fedor Vincente

Donald Meek as Dr. Doskil

Jessie Ralph as Midwife

Ivan F. Simpson as Jan

Franklyn Ardell as Chauffeur

Leila Bennett as Maria

June Gittelson as Annie

Carroll Borland as Luna

Holmes Herbert as Sir Karell Borotyn

Michael Visaroff as Innkeeper

Egon Brecher as Coroner (uncredited)

Robert Greig as Fat Man (uncredited)

John George as Gypsy (uncredited)

Louise Emmons as Old Gypsy Woman (uncredited)

Eily Malyon as

Guy Bellis as

James Bradbury Jr. as

Rosemary Glosz as

Tiny Jones as

Jane Mercer as

Torben Meyer as

Patricia Reel as

Christian Rub as

Clare Verdera as
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