Torchy Blane joins her police-detective fiance to solve a series of murders involving a set of Chinese grave tablets taken and sold to a collector and death-threats written in Chinese characters.

Beau Nash is a "gentleman crook" who headquarters his gang of jewel thieves in a run-down boardinghouse. When one of his gang, Mike, gets arrested, his sister Claire--aka "Lady Byron"--swears to get revenge. The gang frames Donald, the best friend of the detective who arrested Mike, for a jewelry store robbery. The detective gives Donald--and his new love, Claire--a short time to find the thieves and clear his name before he takes him in.

Sydney Fairchild, the daughter of a woman who was once loved by three bachelors, surprises the men with a visit. Findley, Trumbull, and Gaunt honor their former sweetheart's last request by becoming Sydney's guardians.

Against the wishes of Doctor Neighbor, the guardian who also loves her, Hazel, who is due to inherit a fortune when she turns 21, marries district attorney Hamilton Rogers, a man more devoted to Hazel's future bank account than to her.

John Oakhurst, a gentleman gambler, befriends Sandy Morton, who has dissipated his birthright through gambling and excessive drinking and dropped from his father's sight. Although Oakhurst soon takes Sandy's place in the affections of his father, he boards a train heading West and meets Pritchard, an alcoholic, and his wife, the Duchess. Pritchard is wanted by the law and Oakhurst helps him to escape detectives who are on his trail.

In Mexico, a poor Yaqui Indian loses his family through the actions of a racist Mexican officer named Martinez.