Greta is a beautiful young woman abused by her brother Franz and left to die in childbirth by her illicit lover, the aristocrat Dr. von Ravensbrück. Bereft with grief, Franz reanimates his dead sister using a formula engraved on an ancient Incan medallion. Greta then returns as an undead avenging angel, reaping revenge on the Ravensbrück family and her manically possessive brother.
Ewa Aulin
as Greta von Holstein
Klaus Kinski
as Dr. Sturges
Luciano Rossi
as Franz
Attilio Dottesio
as Inspector Dannick
Carla Mancini
as Gertrude - The Maid
Angela Bo
as Eva von Ravensbrück
Sergio Doria
as Walter von Ravensbrück
Marco Mariani
as Simeon
Giacomo Rossi Stuart
as Dr. von Ravensbrück - Walter's Father
Fernando Cerulli
as Professor Kempte
Giorgio Dolfin
as Maier - Ballet Dancer
