Lydia Garth meets Paul de Vandiere, a French nobleman, but their romance is plagued by Lydia's complaint of recurring spells of blurred vision. Paul leaves for France, promising to return and marry Lydia, but she loses her sight while he is gone. Given no hope of recovery, she enters a convent, but the Abbess decides that she has no vocation for life in a nunnery. She finally marries Paul, but encounters strong opposition from Verite Faimont, a neighbour who is very fond of Paul. The latter constantly plots against Lydia and is successful in temporarily breaking up the marriage, but can a miracle of restored vision be seen?