Kimble, escaping from a bus caught in a police roadblock, runs to a farm and hides. He is unaware that Mattie Braydon is sitting in the dark. Mattie, well-played by actress Tuesday Weld, is beautiful, blonde, sexy -- and blind. She deceives police and her family to help Kimble. The next day, when her modeling clay arrives by bus, she and Kimble pretend he has arrived on the bus, and will be working as her model. Also, Kimble can repair motorized farm equipment that has broken down.
Mattie lives in a complex family situation with her father, her sister Clara, and Bob, who has lived with the family for many years after his parents were killed, and who is now engaged to Clara. Mattie uses her beauty and blindness to manipulate others to her will. She has helped Kimble because she knows he must depend on her keeping quiet, and thus can use him to further her plans.
Mattie's devious actions pose danger for Kimble and for every member of Mattie's family.