A young sailor finds himself trapped in the labyrinthine mansion of his occultist uncle, along with a number of eccentric and mysterious relatives who all seem to be harboring a dark secret.
Orson Welles
as Cassavius
Susan Hampshire
as Nancy / Euryale / Alice / Nurse / Charlotte
Michel Bouquet
as Charles Dideloo
Mathieu Carrière
as Jan
Jean-Pierre Cassel
as Lampernisse
Daniel Pilon
as Mathias Crook
Walter Rilla
as Eisengott
Dora van der Groen
as Sylvie Dideloo
Charles Janssens
as Philarette
Sylvie Vartan
as Bets