In Honor's Web (1919)

Wealthy businessman Frank Powell falls in love late in life with Olive Meade, the sister of Governor Carroll Carson's wife Irene. One day Frank sees Olive embracing his younger brother Bert. As he leaves dejectedly, Frank discovers Irene, whose busy elderly husband neglects her, with society idler Rodney Foster. Later Rodney insults Irene and Frank knocks him down. After Frank overhears plans for Rodney and Irene to elope, he telephones Rodney to demand that they meet by 1:30 that night or else he will go to Rodney's place. When Frank arrives there at 2:05, he finds Irene and drives her home. After Rodney's body is found the next morning, Frank is arrested, but because he believes that Irene killed Foster, he remains silent. Olive tries to save Frank by saying he was in her bedroom at the time, but when Foster's valet confesses murdering Foster and framing Frank, Frank is freed and discovers that Olive loves him.