A group of people visit a weird old man who is a student of the black arts. The man lives in an ancient, cursed castle. Soon people in the group start being killed off.
Jean-Claude Brialy
as Marc Desgrez
Claude Rich
as Stéphane Desgrez
Édith Scob
as Marie D'Aubray Boissand
Perrette Pradier
as Lucie Desgrez
Nadja Tiller
as Nurse Myra Schneider
Walter Giller
as Michel Boissand
Antoine Balpêtré
as Dr. Hermann
René Génin
as Frédéric Henderson
Héléna Manson
as Augusta Henderson
Frédéric Duvallès
as Mathias Desgrez
Claude Piéplu
as Inspector Krauss
Dany Jacquet
as Frieda
