Directed by Freddie Francis   Written by August Rieger   Karl-Heinz Hummel   Cast Pia Degermark ... Betty Williams / Großmutter Clarimonde Catani Thomas Hunter ... Internatslehrer Jens Larsen Yvor Murillo ... Der alte Diener Josef (as Ivor Murillo) Ingrid van Bergen ... Miss Niessen Joachim Kemmer ... Bruder Martin Oskar Wegrostek ... Der Abt Lyvia Bauer ... Internatsschülerin Gabrielle Daria Damar ... Internatsschülerin Kirsten Michael Janisch ... Handwerker Toni Wagner   Raoul Retzer ... Graf Bernhard Ochsenstein Kay Williams   Ferdy Mayne ... Fürst Christopher Dracula (as Ferdie Mayne) Uncredited Cast Wolfgang Draeger ... Schwuler Steward (voice) Bruno Frenzel ... Rock-Band (Birth Control) Uwe Friedrichsen ... Internatslehrer Jens Larsen (voice) Ursula Heyer ... Betty Williams / Großmutter Clarimonde Catani (voice) Bernd Koschmidder ... Rock-Band (Birth Control) Willfried Kovárnik ... Transvestite Klaus W. Krause ... Der alte Diener Josef (voice) Gerd Martienzen ... Fürst Christopher Dracula (voice) Kurt Mühlhardt ... Graf Bernhard Ochsenstein (voice) Hans Nitschke ... Various Roles (voice) Bernd Noske ... Rock-Band (Birth Control) Beba Novak ... Vampire girl in white Edgar Ott ... Handwerker (voice) Reinhold Sobotta ... Rock-Band (Birth Control) Konrad Wagner ... Der Abt (voice) Produced by Pier A. Caminnecci   Original Music by Jerry van Rooyen

Additional Info Premiere: June 04, 1971 DVD Release: May 09, 2000 Countries: Distributor: Alpha Video Websites: Alternate Titles Gebissen Wird Nur Nachts - Das Happening Der Vampire Production Companies Aquila Film Enterprises Distributors Horizon Films   (1974) (United States) (dubbed) (theatrical) Anchor Bay Entertainment   (2000) (United States) (DVD) Alpha Video Distributors   (2003) (United States) ('The Vampire Happening') (DVD) VCI Entertainment   (2011) (United States) (DVD) YouTube   (United States) (video) Filming Locations Burg Liechtenstein, Maria Enzersdorf, Lower Austria, Austria Castle Kreuzenstein, Korneuburg, Lower Austria, Austria Vienna, Austria Rating Stats Overall Rating 4.6 / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #9,706 / 21,373 Site Ranking #9,702 Founders Day (2023) #9,703 Encounter (2016) #9,704 Frankenthumb (2002) #9,705 I Am Santa Claus (2014) #9,706 The Vampire Happening (1971) #9,707 Bleed (2002) #9,708 Insecticidal (2005) #9,709 Star Wars: The Legacy Revealed (2007) #9,710 47 Hours To Live (2019)