Julia Almond believes she is special and dreams of a more exciting and glamorous life away from the drab suburbia of her upbringing. Her work in a fashionable boutique in the West End gives her the personal freedom that she craves but escape from her parental home into marriage soon leads to boredom and frustration. She begins a passionate affair with a younger man, which has deadly consequences. Based on the events of a sensational murder trial in the 1920s.