During a violent thunderstorm Helen Stone takes refuge in a building with her traveling companion, who is killed when lightning strikes the building. Helen, a forger's daughter who has never been able to find her way in the world, then assumes the dead girl's identity and goes to the home of the girl's aunt, where she is accepted as one of the family. Her true identity is later discovered by an architect, who attempts to force her into marriage and causes the aunt to have a paralytic stroke. Overcome by remorse, Helen confesses her deception and is forgiven everything by one and all; and she soon finds herself making preparations to marry Ernest Bruce, a young surgeon with whom she is in love.