"A young girl goes to work as a live-in caretaker for a spooky old woman. She doesn't know that every night, the woman drains some blood from her to feed her strange plant."
Gale Sondergaard
as Zenobia Dollard
Brenda Joyce
as Jean Kingsley
Kirby Grant
as Hal Wentley
Milburn Stone
as Mr. Moore
Rondo Hatton
as Mario the Monster Man
Hobart Cavanaugh
as Bill Stapleton
Ruth Robinson
as Mrs. Wentley
Adda Gleason
as Martha
Lois Austin
as Jenny Hawks
Tom Daly
as Sam Julian
Eula Guy
as Molly Cowin
Norman Leavitt
as Tom
Carmen Dirigo
Hairstylist
John B. Goodman
Art Direction
Abraham Grossman
Russell A. Gausman
Set Decoration
Ralph Warrington
Milton Rosen
Music Director
Arthur Lubin
Director
Eric Taylor
Screenplay
Fred Frank
Assistant Director
Bernard B. Brown
Sound
Robert Pritchard
Joan Hathaway
Dialogue
Howard Welsch
Producer
Paul Ivano
Director of Photography
Ray Snyder
Editor
Vera West
Costumer
Jack Pierce
Makeup Artist