The Dark Mirror (1920 film)

The film stars Dorothy Dalton in a dual role, Huntley Gordon, Walter D. Nealand, Jessie Arnold, Lucille Carney, Pedro de Cordoba, and Donald MacPherson.

As if to make her dreams come true, a gang of thugs mistakes her for Nora, a belle of the Bowery, and kidnaps her.

Nora (Dalton) is known to be gangster Red Carnahan's (Nealand) girl, but is loved by the Spaniard, Mario Gonzales (de Cordoba).

Dr. Fosdick is attempting to explain the true circumstances to Mario at his New Jersey retreat when Priscilla looks out the window and sees Red Carnahan on the shore of a nearby lake.

Red is horrified to see Priscilla, an exact counterpart of the dead Nora, and drowns himself in superstitious terror.