Robert Redford is Mister Straight. Jane Fonda is his new wife, who dedicates her life to the pursuit of fun. As the ecstasy of the honeymoon gives way to the reality of setting up housekeeping in a five-flight walk-up, the harmony of marriage turns to comical discord. The mother-in-law complains meekly. The middle-aged Lothario upstairs flirts. Joy turns to anguish. There is little doubt that the young people will kiss and make up by the end of the picture, just as there's little doubt that the mother and the neighbour will find each other.