Jilted seamstress Constance Taylor travels to Sweetwater Springs to live with her estranged father, the livery stable owner. She plans to open a dressmaking shop and bring sophisticated clothing styles to the uncouth frontier town. Angus Cameron is a young doctor, who’s bitter and discouraged from his work with upper class Londoners and the wretched poor in the East End slums. He arrives in Sweetwater Springs to share the medical practice of his brother, the town doctor. Although Constance and Angus don’t want to live in Sweetwater Springs, both are determined to change the town in ways they think are important. They clash over her fashionable creations, which Angus knows are unhealthy, and Constance refuses to change. They deny their attraction to each other until Constance falls ill from the arsenic used in her favorite purple and green fabrics, and Angus must fight to save the life of the woman he’s come to love.