Cousin Kate.

Amy Spencer is engaged to artist Heath Desmond, a nature-worshipper who shuns organized religion. James Bartlett, a minister in love with Amy, influences her against Heath, and they break up. Cousin Kate Curtis, a novelist whose views on love are considered by her relatives to be unconventional, is called in to smooth matters over. She meets Heath on the train, and the two, not knowing each other's identity, apparently fall in love.