Iris Carr, a bright representative of the golden youth, returns home to England after a vacation in the Balkans. This is not the first time when she travels alone, without a noisy company of friends and suitors, who are attracted to her considerable wealth like a magnet. On the train, Iris meets a sweet, talkative woman named Miss Froy. Tired of the journey and the endless stories of her companion, the girl falls asleep, and when she wakes up, she notices that the lovely lady has disappeared without a trace. Iris begins a search for the missing person, but everyone around claims that there was no Miss Froy in the car...