Frank Dane

In Wales, a gypsy queen changes her sister's dead baby for one by the same father. The child grows up to marry her daughter.

Dolores gets a marriage proposal from the promising young doctor Lucas, but on the day of their marriage, she leaves him in the lurch and takes off with the South American dancer and adventurer Hugo Amadis. But Hugo treats her badly. Dolores leaves Hugo and begins a career as a dancer to make ends meet for her and her son. One day, the son gets sick, and the doctor who helps the child through the crisis is Doctor Lucas. Lucas and Delores decide to start over.

Raimundo Davidson is a young man in love with Florence, the niece of Dr. Belforger, master of hypnotics, who takes advantage of this faculty to intervene in a series of illegal business with his friend Burner. Aware of the fortune of Davidson, they accelerate their marriage with Florence to obtain it through the girl. Davidson is put on notice of Belforger's activities by an insurance firm. Discovered and stopped by the doctor, Davidson finally meets with Florence.