Yvonne Dupré, the sole survivor of a once-noble French family, makes a modest living selling her paintings to Leon Naisson, who resells them for exorbitant prices as the work of a famous artist. Leon confides to Yvonne's gypsy model, Romildo, that he is sexually attracted to the artist. Romildo drugs his lover, the fiery apache dancer, Juliette, who closely resembles Yvonne, then invites Leon to rape her for one thousand francs. Leon discovers that she is not Yvonne, but convinces the artist's sweetheart, Dick Gray, that she has been unfaithful. As police close in on Leon, he frames Yvonne by planting forged paintings in her studio. Following Yvonne's arrest, Juliette is informed by her foster sister that she was stolen by gypsies as a child and is actually Yvonne's twin sister. Juliette exposes Leon's operation to the police, reuniting Yvonne and Dick.