Hindu novelist Akbar Khan, lives in Greenwich Village and uses his love affairs as inspiration for his books. When he exhausts all the story material from his affair with Indora, a young Persian girl, he deserts her. Virginia Crosby, a social worker, takes pity on Indora, who has failed in an attempt to kill Khan, and offers to win him back for her. Virginia pretends to fall in love with Khan and inspires him with tales of the devil's trademark, the emblem of a band of devil worshipers whose hero is named Hassa. In these tales, Hassa and a beautiful Hindu woman lead a series of adventures based upon the motif of devil worship. When Virginia jilts Khan before the last installment of the serial is written, she sends Indora to take her place, and Khan finally discovers his love for her.