When his son marries a woman whose mother is the madame of a brothel, a wealthy father in San Francisco disowns him. The newlyweds travel to the South Seas, where he gets a job on a plantation. The father sends an agent to the plantation to try to buy off his son's bride, but she won't go for it. Not long afterwards she gives birth to a son, and unfortunately her husband soon dies. She returns to San Francisco with her newborn son, determined to have her vengeance on her former father=in-law.