Joseph Kaufman

Upon his father’s death Jules Beaubien's is left a rich man but also one with a mission. Find his until now unknown half-sister, take her in and educate her. After investigating he discovers she has met a tragic fate after falling for a roue who had abandoned her. Swearing vengeance, he set off in a quest for justice in her name.

Andrews, a former shipping clerk, has amassed a fortune in cocaine and therefore discourages his daughter May's romance with Joe, a policeman. Andrews prefers socialite Roger Hastings, whom May marries but soon discovers is a drug addict. While May is recovering from a nervous breakdown precipitated by the knowledge of Roger's addiction, he slips cocaine into her medication. Soon she also is addicted, a fact which Roger delightedly reports to Andrews. Andrews then commits May to a sanitarium and Roger becomes a procurer for a gang of white slavers. When the gang abducts his sister Julia and takes her to Roger's brothel, he turns against them. Julia is released, and after many complications, Roger returns to Andrews' house and, during a struggle, sets the house on fire, killing them both.