Tanz der Vampire

In the organizer's words:

Vampire expert Professor Ambronsius (Jack MacGowran) travels to Transylvania with his assistant Alfred (Roman Polanski) to prove the existence of the blood-sucking undead. And indeed, they soon come across a princely castle and clear clues...

The oddball Professor Abronsius (Jack MacGowran) and his anxious assistant Alfred (Roman Polanski) want to go on a vampire hunt in Transylvania and eradicate this unwelcome species. They are soon on the trail of the blood-sucking Count Krolock (Ferdy Mayne), who has abducted the beautiful innkeeper's daughter Sarah (Sharon Tate) to his castle. Once there, the uninvited guests are greeted by the annual dance of the vampires.
Roman Polanski has created a classic horror comedy that continues to entertain audiences decades later. Always worth seeing and highly amusing!
At the end of the last century, old Professor Abronsius and his young adlat Alfred travel to wintry Transylvania to get to the bottom of the vampire myth. In a lonely settlement in the mountains, they happen to witness how the neighboring Count Krokow brute forcefully asserts his right to the first night with the beautiful daughter of the local innkeeper. Without hesitation, Abronsius and Alfred, who is already head over heels in love, pick up the trail of the kidnapped woman and arrive at Krokow's estate just in time for a grand ball.
An old professor and his anxious assistant want to hunt down and eradicate vampires in Transylvania, but fail to do so because the last mutant victim they thought they had saved has also been infected.