The Spider's Web.

Banker Graham Lawlor is convinced to invest in Silver Shield Mines and becomes president, unaware that promoters Harris, Brennen, and Lester are frauds. He asks his son, Trevor, a small-town lawyer, to join as secretary. Trevor suspects foul play, warns his father, and returns to his practice after a disagreement. Lester, one of the promoters, woos and abandons his stenographer, Brenda Wray. When rumors surface about the mine’s instability, the promoters attempt to place blame on Lawlor. Knowing he holds documents to clear his name, they bribe his servant to steal them. Brenda, seeking justice from Lester, overhears the plan and informs Trevor. Lawlor’s servant, Thompson, is caught, confesses, and clears Lawlor’s name, leading to the arrest of Harris, Brennen, and Lester.