Vicky Barton and her brother Johnny travel from Naples to visit the 1889 Paris Exhibition. They both sleep in seperate rooms in their hotel. When the she gets up in the morning she finds her brother and his room have disappeared and no one will even acknowledge that he was ever there. Now Vicky must find out what exactly happened to her brother.
Jean Simmons
Vicky Barton
Dirk Bogarde
George Hathaway
David Tomlinson
Johnny Barton
Marcel Poncin
Narcisse
Cathleen Nesbitt
Madame Hervé
Honor Blackman
Rhoda O'Donovan
Zena Marshall
Nina
André Morell
Doctor Hart
