Reportedly, the stars began an off-screen love affair while making this film - a story of unconsummated passion between a rich midwestern boy and a passionate young girl.The lovers plan to murder he woman""s unloved husband - and it is the unfaithful wife Cora who plants the idea of murder into Frank""s head so that they can be together.Debating whether to tell the truth or not, Brent was finally forced to confess, confirming their worst fears: "The apes are marching on your city.Identifying with her mother""s lack of a dashing husband in her marriage, she longs to provide a romantic substitute (or a religious savior): "Mother, I""m going downtown and send a telegram.