Author Hartzell Spence's popular biography of his preacher father was the source for One Foot in Heaven. Fredric March stars as Methodist cleric William Spence, whose calling requires him to move his family from parish to parish on a near-monthly basis. The children resent the fact that they're never able to sustain friendships, while Reverend Spence is equally upset by what he perceives to be encroaching immorality in the early 20th century. Spence's stubbornness loses him as many parishioners as he gains, but he is gradually humanized by a series of random events. In the best of these, the Reverend, who has railed against movies from the pulpit, attends a "scandalous" picture show--and as the picture reaches its climax, he finds himself cheering on the good guys as loudly as everyone else!