The Isle of Doubt (1922)

Eleanor Warburton, the daughter of a penniless father and a socially ambitious mother, is loved by wealthy Dean Deland but is interested only in Gerry Patten. A plan is conceived whereby Eleanor will marry Dean and, with Gerry's help, will make his life so miserable that he will divorce her and give her a considerable sum of money. But Dean discovers the plan and retaliates by taking Eleanor and Gerry to a South Sea island.