A Dangerous Affair.

Elderly millionaire James Rance, whose only passion is chess, warns his grandson Tommy, who missed the previous evening's game because he played poker with his uncle Gilbert, that should he miss another game, Gilbert will gain the boy's inheritance. During another poker game the next night, Gilbert provokes a fight between Tommy and another player that results in the other player's supposed death. Meanwhile, Terrence Redmond, the guardian of an orphan he found while fighting in France, falls in love with Dawn Moyer.