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

Genres

Cast

Lionel Barrymore

Professor Zelin

Elizabeth Allan

Irena Borotyn

Bela Lugosi

Count Mora

Lionel Atwill

Inspector Neumann

Jean Hersholt

Baron Otto

Henry Wadsworth

Fedor Vincente

Donald Meek

Dr. Doskil

Jessie Ralph

Midwife

Ivan F. Simpson

Jan

Franklyn Ardell

Chauffeur

Leila Bennett

Maria

June Gittelson

Annie