Cave Of The Living Dead (1965)

aka’s: Der Fluch Der Grünen Augen/
Die Grotte Der Lebenden Toten/
Night Of The Vampires/The Curse Of The Green Eyes

There are seven unsolved murders in a small village. An Interpol inspector (Adrian Hoven) is called in to check it out and the only clue is that the power goes out whenever a murder is committed. The villagers don’t trust the inspector and think it has something to do with “the vague shadows in the caves under the local castle.” Also stars Erika Remberg and Carl Möhner. Also with John Kitzmiller aka: Quarrel in the first James Bond movie, Dr. No (1962).