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.
Margaret Lockwood
Michael Redgrave
Paul Lukas
May Whitty
Basil Radford
Naunton Wayne
Cecil Parker
Linden Travers
Mary Clare
Emile Boreo
Googie Withers
Sally Stewart
Philip Leaver
Selma Vaz Dias
Catherine Lacey
Josephine Wilson
Charles Oliver
Kathleen Tremaine
Ernest Blyth
Alfred Hitchcock
Roy Russell
Wallace Bosco
Alf Casha
Nan Kearns
John Miller
John More
Charles Rolfe