On a train headed for England a group of travelers is delayed by an avalanche. Holed up in a hotel in a fictional European country, young Iris befriends elderly Miss Froy. When the train resumes, Iris suffers a bout of unconsciousness and wakes to find the old woman has disappeared. The other passengers ominously deny Miss Froy ever existed, so Iris begins to investigate with another traveler and, as the pair sleuth, romantic sparks fly.
Cast
Margaret Lockwood
Iris Matilda Henderson
Michael Redgrave
Gilbert Redman
Paul Lukas
Dr. Hartz
May Whitty
Miss Froy
Basil Radford
Charters
Naunton Wayne
Caldicott
Cecil Parker
Eric Todhunter
Linden Travers
'Mrs.' Margaret Todhunter
Mary Clare
Baroness Isabel Nisatona
Emile Boreo
Boris the Hotel Manager
Googie Withers
Blanche
Sally Stewart
Julie
Philip Leaver
Signor Doppo
Selma Vaz Dias
Signora Doppo
Catherine Lacey
The Nun
Josephine Wilson
Madame Kummer
Charles Oliver
The Officer
Kathleen Tremaine
Anna
Ernest Blyth
Foreign Office Man (uncredited)
Alfred Hitchcock
Man in London Railway Station (uncredited)
Roy Russell
Violinist (uncredited)
Wallace Bosco
Gasthof Petrus Guest (uncredited)
Alf Casha
Gasthof Petrus Guest (uncredited)
Nan Kearns
Dancing Woman (uncredited)
John Miller
Rudolf - Gasthof Waiter (uncredited)
John More
Passenger in Dining Car (uncredited)
Charles Rolfe
Train Fireman (uncredited)
Crew
Alfred Hitchcock
Director
Sidney Gilliat
Screenplay
Frank Launder
Screenplay
Ethel Lina White
Novel
R. E. Dearing
Editor
Jack E. Cox
Director of Photography
Tom D. Connochie
First Assistant Director
Roy Ward Baker
Assistant Director
Edward Black
Producer
Leslie Gilliat
Camera Operator
Len Harris
First Assistant Camera
Albert Whitlock
Scenic Artist
Maurice Carter
Assistant Art Director
Albert Jullion
Assistant Art Director
Claude Hitchcock
Sound Design Assistant
Sydney Wiles
Sound Recordist, Recording Supervision
Louis Levy
Original Music Composer, Music Director
Charles Williams
Original Music Composer
Alex Vetchinsky
Set Designer
Alma Reville
Continuity
Alfred Roome
Editorial Staff
Cecil Milner
Orchestrator
