Ceremonia sangrienta
- År: 1973
- Land: Italy, Spain
- Genre: Gyser
- Studio: Luis Film, X Films
- Nøgleord: vampire, paranoia, castle, murder, blood bath, gothic horror
- Direktør: Jorge Grau
- Cast: Lucia Bosè, Espartaco Santoni, Ewa Aulin, Ana Farra, Silvano Tranquilli, Lola Gaos