L'assassino... è al telefono

Anne Heywood as Eleanor Loraine Willeke van Ammelrooy as Dorothy Rossella Falk as Margaret Vervoort Roger Van Hool as Peter Vervoort Ada Pometti as Nurse Telly Savalas as Ranko Drasovic Osvaldo Ruggieri as Thomas Brown Alessandro Perrella as Psychiatrist

Serge-Henri Valcke Set Decoration Joe D'Amato Director of Photography Alberto De Martino Director, Writer Stelvio Cipriani Original Music Composer