Oh Doctor! (1917)

Instead of a having a good time at the horse races with his wife and his pampered son, Junior, the prosperous Dr. I. O. Dine ends up losing all his money, after betting on the same losing horse with a reckless horse-racing gambler. However, as the gambler and his femme-fatale sweetheart refuse to take their financial loss lying down, they devise a bold plan so they won't have to return home empty-handed. But, the ever-watchful Junior already knows much. Can he save the day?