Charles Van Horn, son of rich and powerful Théo Van Horn, calls upon his former teacher Paul Régis to help him solve the mystery of his recurring bouts of amnesia.
Anthony Perkins
as Charles Van Horn
Michel Piccoli
as Paul Regis
Marlène Jobert
as Hélène Van Horn
Orson Welles
as Théo Van Horn
Guido Alberti
as Ludovic Van Horn
Ermanno Casanova
as One-Eyed Old Man
Mathilde Ceccarelli
as Receptionist
Eric Frisdal
as Charles enfant
Aline Mantovani
as Hélène enfant
Corinne Koeningswarter
as Hélène enfant
Tsilla Chelton
as Mère Théo
Giovanni Sciuto
as Prêteur
