Watch Your Step: Elmer Slocum has just served a jail sentence for speeding. On his first day of liberty he encounters a physician whose car has broken down and offers to take him to his patient; he is pursued by motorcops for speeding, wrecks his car in a closed street, and knocks down and believes he has killed a policeman. Elmer boards a freight train and makes his way to a small town in Iowa, where he meets Margaret Andrews.....