When a trio of free-spirited young women insists on spending the night in a castle rumored to be owned by the Devil himself, their cobweb-and-candelabra lark triggers a nightmare of lust, violence, vampirism, and Satanic seduction.
| Actor | Role |
|---|---|
 Edmund PurdomGunther | Gunther |
 Rosalba NeriHelga | Helga |
 Robert WoodsHelmuth | Helmuth |
 Spartaco ConversiJohan | Johan |
| FFrancesca LiontiMarta | Marta |
 Miriam BergolloMagda | Magda |
| MMaria Teresa PietrangeliNot listed | Not listed |
 Wolfgang HillingerHans | Hans |
 John BenedyButler | Butler |
 Ferdinando PoggiMan in Tavern | Man in Tavern |
 Carla ManciniNot listed | Not listed |
| MMassimiliano RoyNot listed | Not listed |
| MMaria VianelloNot listed | Not listed |
 Veronika KorosecBerta | Berta |
| BBruna OlivieriBerta's Sister | Berta's Sister |
| GGiovanna Di VitaWoman in Cave | Woman in Cave |
| LLaura De BenedittisWoman in Cave | Woman in Cave |
 Lella CattaneoThe Witch | The Witch |
 Salvatore BillaKidnapper (uncredited) | Kidnapper (uncredited) |
| MMaria Teresa Pingitore(uncredited) | (uncredited) |