This classic mystery, and one of Hitchcock's greatest films, manages to combine humor with a genuine sense of menace-not to mention a curiously amusing collection of characters. The film is set into motion when a seemingly innocuous old woman, Miss Froy, disappears while on board a train bound for England. An acquaintance, Iris, becomes concerned and sets out to find her. What follows is a series of ingenious twist and turns finally steaming toward a suspenseful denouement. The film was extremely popular . and laid the tracks for the great British director's illustrious Hollywood Career. Original Theatrical Trailer.