Marcia Manot, a simple Breton fisher maiden, has found an exquisite emerald, once the property of an ancient Norse queen. The stone is supposed to be cursed, because it was wrested by her from a Christian priest. Silas Martin, the avaricious American owner of large Breton fisheries, marries Marcia to gain possession of the stone, while she marries him in the hope of persuading him to better the condition of his employees. She soon finds that the stone is his sole interest, and that he has planned to divorce her, by compromising her with his business manager, Sterling. In an effort to regain possession of the stone she kills Martin in self-defense and believes the curse to be working, but eventually the stone is given to the priest, that the curse may be lifted, and Marcia escapes the fancied penalty.
—Moving Picture World synopsis