A romantic rivalry among members of a secret society becomes even more tense when one of the men is assigned to carry out an assassination.

George Walters is a youth who is dominated by Bleary, a heartless bully, who forces him to pose as the son of millionaire George Warring, kidnapped as a baby. The missing son had a twin brother who had recently died, but a painting of the shadow of the late son is on one wall. Walters' shadow matches this painting perfectly, establishing him as the missing son to the Warring family. Walters falls in love with Warring's daughter Lucia and finds that the family attorney Glaxton is slowly poisoning the old man.

Jacqueline Floriot is driven from her home by her husband Louis, a deputy attorney of Paris, because of his unjust suspicions regarding her relations with another man. Floriot forbids Jacqueline to see her baby boy, who is dangerously ill, and when informed that the boy believes her dead, she attempts suicide.