After a peaceful sailboat ride, four young people, including rich kid Bill, Joe, Fred and Jane, knock on the door of a secluded villa after their dune buggy runs out of gas. Earlier in the day, Bill had given the lovely Jane a pearl necklace with a supposedly paranormal history, and this later opens up a can of worms. They are invited to spend the night at the mansion, owned by Lord Alexander and Lady Alexander, who happen to be hosting a strange ceremony that night attended by a group of eccentrics in black robes. During the evening, Jane exits her sleep chamber, seemingly in some kind of trance, and is lured to a sacrificial alter where the robed houseguests are hovering over her. As a knife is about to be plunged into the young lady, her three friends come to the rescue, but they are also witness to a chaotic mass murder catastrophe in which they flee with feelings of guilt and uncertainty.
Writing | Mario Bianchi | Screenplay |
Directing | Riccardo Freda | Director |
Writing | Leonardo Martín | Screenplay |
Writing | José Gutiérrez Maesso | Screenplay |
Production | José Gutiérrez Maesso | Producer |
Camera | Francisco Fraile | Director of Photography |
Sound | Stelvio Cipriani | Music |
Art | Amedeo Mellone | Set Decoration |
Art | Rafael Ferri | Set Decoration |
Editing | Jolanda Benvenuti | Editor |
Sound | Eugenio Rondani | Sound |
Crew | Carlo Rambaldi | Special Effects |
Production | Faustino Ocaña | Production Manager |
Production | Sergio Merolle | Production Manager |
Costume & Make-Up | Renzo Francioni | Makeup Artist |
Costume & Make-Up | Cristóbal Criado | Makeup Artist |
Costume & Make-Up | Ana Criado | Hairstylist |
Costume & Make-Up | Luis Criado | Assistant Makeup Artist |
Editing | Felisa Rueda | Assistant Editor |
Editing | Alba Di Salvo | Assistant Editor |
Camera | José Luis Criado | Assistant Camera |
Camera | Miguel Ángel Muñoz | Assistant Camera |
Camera | Giorgio Di Battista | Camera Operator |
Camera | Teodoro Roa | Camera Operator |
Camera | Miguel Guzmán | Still Photographer |
Costume & Make-Up | Manolita Iglesias | Costumer |