D.A. Warren Selvey learns that he's on bad political ground because of his low conviction rate. He decides to vigorously prosecute a man named Rodman. He wins the murder case and Rodman is sentenced to die. After the sentence, however, Selvey meets a man named Barnes who claims to have committed the crime. Selvey is now being considered a candidate for Congress. Fearing the repercussions of having convicted an innocent man, Selvey frightens Barnes into silence. The night Rodman is to be executed, Barnes shows up and urges Selvey to call the governor. Selvey refuses and, in an ensuing struggle, Barnes is killed. Selvey's wife and father-in-law come in and find him over the body. Selvey's father-in-law recognizes Barnes as a man who pathologically studies cases and then confesses to being the perpetrator.