A woman wakes up in the middle of the night on board a train, but she can't remember how she got there. Danger and suspense ensue.
Claudette Colbert
as Alison Courtland
Robert Cummings
as Bruce Elcott
Don Ameche
as Richard W. Courtland
Rita Johnson
as Barby
George Coulouris
as Charles Vernay
Queenie Smith
as Grace Vernay
Ralph Morgan
as Dr. Rhinehart
Keye Luke
as Jimmie Lin
Fred Nurney
as Haskins
Raymond Burr
as Detective Sergeant Strake
Marya Marco
as Jeannie Lin
Lillian Bronson
as Helen
