Businessman Philip Nuneham pays more attention to his business of building power plants than he does to his wife Christabel. Feeling neglected and unloved, Christabel is receptive to the attentions of Rex Allan, a young army officer. When his regiment is suddenly called to duty in India, he convinces Christabel to secretly accompany him to Southampton to see him off. She spends the night with him, and on her way home the next day she is involved in auto accident and injured. Renowned evangelist Sylvanus Rebbings rescues her. He has the largest congregation in the country, but has incurred the enmity of the religious establishment because of his "radical" views on religion and religious hypocrisy, Christabel finds out that she really needs his help when Rex comes home from India and she attempts to end their affair, but her husband discovers her infidelity and threatens to divorce her and keep their daughter Ione.