Anna Grayson has been a dutiful, loyal and obedient daughter her whole life but her world is transformed when she meets the lively and outspoken Mitchell sisters, employees in her father's factory, who awaken her interest in the women's suffrage movement. Anna soon abandons her unfaltering obedience to her father to join them and attend a forbidden rally. This new world of excitement and freedom comes with risks. No longer sheltered by her father's protection, Anna is forced to grow up quickly when tragedy strikes at a rally and her beloved new friend Lily Mitchell is knocked down by a motorcar and killed. Anna suspects it is no accident. Suddenly the world outside no longer seems so enticing. Convinced of foul play, Anna enlists the help of young doctor, Daniel Peters. At first, he is dismissive of her claim that Lily was pushed into the road - who would want to kill her? - but she persuades him to join her fight to uncover the truth and find justice for Lily.