At Treetops Foundling Home in Victorian Nuneaton, one special little girl brings sunshine and joy wherever she goes. A favourite of her foster mother, Kitty grows into a beguiling young woman, but soon attracts the attention of more than one suitor with questionable intentions. She quickly discovers that her beauty is no protection against the peril she finds herself in, as this innocent young girl makes her way in the music halls and theatres of the big city...