The Blood Barrier (1920)

Eugene Solari is fanatically jealous of his beautiful wife Enid. While on a mission for her father, she visits Major Trevor. Her husband finds out and, enraged, rushes to Trevor's house. Enid tries to beat him there to warn Trevor, but is too late--when she gets there Eugene shoots her and then kills himself, but not before he names Trevor as his killer. Trevor is arrested for his murder.