The Turn of a Card (1918)

When he strikes it rich in Oklahoma oil fields, Jimmie Farrell is talked into risking everything in a card game against notorious gambler "Ace High" Burdette. To everyone's surprise, Burdette loses HIS fortune to Jimmie, including his estate in Long Island, NY. Stunned, Burdette wanders aimlessly through a forest and trips over a rock, sustaining a head injury. A feeble-minded local named "Curio" Johnson finds Burdette and takes him to his cabin, for some company. Meanwhile, Jimmie--under the impression that a depressed Burdette has killed himself--goes to New York to inspect his new "estate" and meets Burdette's daughter, Cynthia. The girl, however, mistakes him for a new chauffeur. Complications ensue.