A noted professor and his dim-witted apprentice fall prey to their inquiring vampires, while on the trail of the ominous damsel in distress.
Not streaming on a subscription service in the US right now.
Starring Jack MacGowran, Roman Polanski, Alfie Bass, Jessie Robins, Sharon Tate, Ferdy Mayne, Iain Quarrier, Terry Downes, Fiona Lewis, Ronald Lacey