Chains of Evidence (1920)

Edith Sturgis, the daughter of a judge, returns from studies abroad to find her widowed father remarried. The new Mrs. Sturgis does not reveal that she has a son Dick, once unjustly jailed by Judge Sturgis, but now working as a reporter while still maintaining an association with the Brownlow gang. Quarrelling with her stepmother, Edith leaves home, meets Dick and falls in love. While Dr. and Mrs. Allen (whom Edith met on the steamer) are visiting in the Sturgis home, the doctor's valuable radium is stolen from the safe, and Judge Sturgis is found murdered. Dick, though with Edith at the time, is accused of the crime. Finally, an old shoemaker confesses that he entered the house to steal the radium, with which to cure his crippled son, and witnessed the judge's slaying by the Brownlow gang. Dick is freed and finds happiness with Edith, and the doctor helps the crippled boy.