Casts
Susan Strasberg
as Penny Appleby
Ronald Lewis
as Robert
Ann Todd
as Jane Appleby
Christopher Lee
as Doctor Pierre Gerrard
John Serret
as Inspector Legrand
Leonard Sachs
as Mr. Spratt
Anne Blake
as Marie the Maid
Fred Johnson
as Father
Madame Lobegue
as Swiss Air Hostess (uncredited)
Brian Jackson
as Plainclothes Officer (uncredited)
