Things aren't looking so good for Cyril Paxton. Hoping to earn enough money to finally marry his true love, Daisy Strong, Cyril invests his savings in the stock market, and loses it all. Ruined and on the brink of emigrating to flee his creditors, he reads with amusement a newspaper story telling of the brazen robbery of the Duchess of Datchet's diamonds, worth half a million pounds. But who can imagine his surprise when he returns home and finds, thanks to a luggage mix-up on the train, that he is in possession of the jewels!