Traveling con artist Harold Hill targets the naïve residents of a small town in 1910s Iowa by posing as a boys' band leader to raise money before he can skip town. His only problems comes in the form of an outspoken librarian/piano teacher who sees right through his scheme. With his wit and charm he manages to subdue this issue as well as change the townspeople, but then something happens that he didn’t count on…..he cares.