Sisif (Severin-Mars) is the kindly railroad engineer who adopts the orphan girl Norma (Ivy Close). He raises her as his own along with his son Elie (Pierre Magnier). When they are grown, Elie and Herson (Gabriele de Gravvone) are compelled to fight to the death on a mountain top over the love of Norma. Elie dies when he falls after losing his grip on a tree branch, and Norma is turned out by Sisif who blames her for the death of his only son. She marries Herson but is left a widow within the year. Sisif becomes a blind recluse and visits the sight of his son's death on the one-year anniversary. He arrives with the help of his guide dog. Norma returns to help Sisif but is again turned away by the bitter father. She secretly helps the old man until he dies in this sentimental melodrama.