The film follows Lya, a woman seeking refuge from Cossack soldiers, who finds herself at the palace of Prince Nicholas. She becomes his majordomo and they fall in love, but their relationship is disrupted when Nicholas learns of her past with a Bolshevik leader. Lya is expelled, becomes a terrorist, and later encounters Nicholas again, now disguised as a servant. When Nicholas is sentenced to death, she rescues him and they escape together.

Margaret Holt and her brother Victor set out to smash a narcotics ring responsible for their father's death. Young reporter John Howell and eccentric mystery writer Winthrop Clavering help unravel the truth about the murder.

In this entry in the Lone Wolf series, the first to have a soundtrack, the jealousies of the King and the coquettish Queen are chronicled. When His Majesty learns that his wife has given the ring he gave to her to her lover, the King plans a large ball and demands the she wear the token. As her lover is a military attache, he is not in the palace, and the queen must send her lady-in-waiting to bring it back. En route, the lady meets a thief and they team up. She does not know that he has been dispatched by the King to steal ring from the attache.

A lovely dame with dangerous lies employs the services of a private detective, who is quickly caught up in the mystery and intrigue of a statuette known as the Maltese Falcon.