When they decide they might as well be penniless husbands and wives as penniless campus sweethearts, three couples at a Midwestern university, against the advice of their friends, get married. Joe and Susie Tucker prove that two can live as cheap as one by setting up housekeeping in a trailer, and working at whatever odd jobs turn up. Slats and Jennifer Warwick marry because they can fight better under the same roof then when separated, and use Jennifer`s allowance from home to pay for their groceries. John Gregory, a brilliant pre-med student, and his bride, Kay, are in the most serious situation. Kay`s allowance is suddenly cut off by her unsympathetic step-mother, while the scholarship on which John is depending is threatened by his inability to do two jobs at once - study all day and work at night to support them. Kay, determined to prevent John from giving up college, takes a series of back-breaking jobs in order to give him time to study.