The Vamp (1918)

Nancy, a naive young girl who works backstage at a musical-comedy theatre, learns from the chorus girls the notion of winning a man by the seductive method of "vamping" him. She tries the method on the shy minister she loves, and it works. They marry and resettle in a mining town where a German operative foments dissension amongst the miners. Nancy is called upon to use her vamping technique once more to get the best of the German spy.