The Sixth Commandment (1924)

John Brant, a devoted minister, is in love with Marian Calhoun, but must keep it a secret because she is engaged to Robert Fields--who, unbeknownst to Marian, is playing around with a variety of different women. Marian finds out and breaks the engagement. John goes off to fight in the war and returns blinded. Robert turns up dead, and Marian and John are charged with his murder.