Blood of Dracula is the distaff installment in the quintet of teenage monster movies produced by Herman Cohen, written by Aben Kandel, and directed by Herbert L. Strock, Gene Fowler, Jr., and Arthur Crabtree. The remaining quartet of flicks include I Was a Teenage Werewolf (directed by Fowler), I Was a Teenage Frankenstein and How to Make a Monster (ruddered by Strock), and Horrors of the Black Museum (helmed by Crabtree).
Writer Kandel lazily milked the formula he concocted for Teenage Werewolf: an older, authority figure dominates a young subordinate, turning his/her submissive victim into a monster, which he/she uses for murderous purposes. Miss Branding (Louise Lewis) in Blood of Dracula is the spiritually sinister "sibling" of Dr. Brandon in Teenage Werewolf and Dr. Frankenstein in Teenage Frankenstein (Whit Bissell), Pete Dumond (Robert H. Harris) in How to Make a Monster), and Edmond Bancroft (Michael Gough) in Black Museum.
Takeaway Moral of the Stories: Never trust anyone over thirty twenty.