Liberal-minded Johnny Case (Cary Grant) wanders into a storm of trouble when he goes to meet his fiancée's wealthy family. His prospective father-in-law is not too impressed with Johnny's plan to take a 'holiday' in the early years of his life. Johnny is nonplussed - all he wants is to enjoy himself and find a direction while he is still able. However, he finds unlikely allies in the form of his future sister-in-law, Linda (Katharine Hepburn), and her tipsy brother, Nick (Lew Ayres).