Robert Gordon, a sheltered 18-year-old youth reared in a Catholic school, believes he has a vocation for the priesthood. He is taken to live with his father in his palatial Florida home. There he falls in love with his step-sister, Patricia Morrow, ten years his senior. He runs away and joins the R.A.F. Shot down in battle, he is rescued and taken to a monastery where he renounces the world to study for the priesthood.