The piano player at a swank hotel thinks she is good until a "wolf in sheep's clothing" comes along and shows her how to really beat out a tune. She swoons.
Stephan Gregorovitch, the unwilling king of a bankrupt Ruritanian country, along with his hucksterish chancellor and musically-inclined bodyguard, travel incognito to London for some fun.
A pretty young lawyer discovers that her father needs an expensive operation to save his life. She goes to a nearby city and takes out an ad offering to marry whoever will pay her $5000, the cost of the operation.
Among the travelers of varied backgrounds that meet and interact on one night at Union Depot, a metropolitan train station, are Chick and his friend Scrap Iron, both newly released from prison after serving time for vagrancy.