The ring given to her by her adopted father, Tom, makes Alice suspect that her fiancé Gene, who has one exactly the same, is really her brother. Her mother Helen had died while giving birth to her in Paris and Tom, who had an unrequited love for the woman, had decided to bring her daugther up as his own. Gene and Alice consider committing suicide, only to finally discover that ther are not in fact related to one another.
Rosamond abandons her mother, Baby Brabant, on discovering that she works in a casino, and becomes a successfula actress, while her mother, devastated by her daugther's desertion, turns into an opium addict. Rosamond falls in love with Ned, son of Brabazon, the wealthy man who was married to baby Brabant, making them afraid of discovering that ther are brother and sister and therefore unable to continue seeing each other.
On her wedding day, Norma wants to tell her husband-to-be, Edwards, a secret from the past, but her mother advises her otherwise. The secret is that norma has a son; Edward eventually finds out and promises that, though willing to adopt the chils, he also intends to kill the father. Suspecting his friend Tom, he shoots the man on surprising him alone with Norma.