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A young woman stumbles upon a mysterious diary that reveals the secrets of "The Three Mothers" and unleashes a nightmare world of demonic evil. As the unstoppable horror spreads from Rome to New York City, this unholy trinity must be stopped before the world is submerged in the blood of the innocent.
Original Release
02/07/1980
US Release
04/02/1980
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Cast
| Name | Character |
|---|
| Leigh McCloskey | Mark Elliot |
| Irene Miracle | Rose Elliot |
| Eleonora Giorgi | Sara |
| Daria Nicolodi | Elise De Longvalle Adler / Elise Stallone Van Adler |
| Sacha Pitoeff | Kazanian |
| Alida Valli | Carol, the caretaker / Carol |
| Veronica Lazar | Mater Tenebrarum / The Nurse / Nurse |
| Gabriele Lavia | Carlo |
| Feodor Chaliapin Jr. | Professor Arnold / Dr. Varelli |
| Leopoldo Mastelloni | John, the Butler |
Directors
Writers
Dario Argento, Thomas De Quincey, Daria Nicolodi, Dardano Sacchetti
Cast
| Name | Character |
|---|
| Leigh McCloskey | Mark Elliot |
| Irene Miracle | Rose Elliot |
| Eleonora Giorgi | Sara |
| Daria Nicolodi | Elise De Longvalle Adler / Elise Stallone Van Adler |
| Sacha Pitoeff | Kazanian |
| Alida Valli | Carol, the caretaker / Carol |
| Veronica Lazar | Mater Tenebrarum / The Nurse / Nurse |
| Gabriele Lavia | Carlo |
| Feodor Chaliapin Jr. | Professor Arnold / Dr. Varelli |
| Leopoldo Mastelloni | John, the Butler |
| Ania Pieroni | Musical Student / Music Student |
| James Fleetwood | Cook |
| Rosario Rigutini | Man |
| Ryan Hilliard | Shadow |
| Paolo Paoloni | Music Teacher |
| Fulvio Mingozzi | Cabdriver |
| Luigi Lodoli | Bookbinder |
| Rodolfo Lodi | Old Man / Old Man in the Library |
| Dario Argento | Emilio Varelli |
| Lamberto Bava | Pedestrian |
Producers
| Name | Role |
|---|
| Salvatore Argento | Executive Producer |
| Guglielmo Garroni | Executive Producer |
| Claudio Argento | Producer |
| Salvatore Argento | Producer |
Editors
