In post–World War I Europe, drifter Jim Jeffries, son of a disgraced stock speculator, stumbles into high society at a London palace card party and parlayed his luck into wealth, only to lose it all in a cutthroat Chinese port and end up in prison. Upon release, he secretly marries the resourceful Jane, reinvents himself in America as Riche Richson, and, newly prosperous, reunites with Jane, now companion to a millionaire’s daughter, on a whirlwind transatlantic adventure that proves fortune can favor the bold.