After being unfaithful to "The Stranger", who committed a murder on her account, Cherry Millard, known as "The Siren", leaves to work in a dance hall in the Western town of Nugget. When Burt Hall arrives in town to deliver a will to the heirs of Bruce McClade, he is captivated by Cherry, who learns of Burt's mission. Discovering that the will dictates that Dr. Langdon, a friend of the family, is to receive $25,000, Cherry decides to impersonate Langdon's daughter Rose and thus gain possession of the money. In the meantime, The Stranger, who has been freed from jail, returns, recognizes Cherry as The Siren and kills her. This frees Burt from her evil spell, and The Stranger, now insane, follows The Siren's spirit into the desert.