Alfred Burton, a smooth-talking salesman, is having a perfectly ordinary day on the job when he stumbles across a strange plant with green leaves and a cluster of queer little brown beans hanging down from them in an old house. The virtue of the beans is that he who eats one shall see nothing, think nothing, say nothing but the truth. Alfred Burton has a well-meaning, rather ordinary wife who becomes unendurable to him, and he falls in love with a charming girl who would have no appeal for the man he formerly was. What Alfred really doesn’t realize is that the fruit of the plant, when eaten, will change not merely the entire course of his life, but in fact his very self.