It's July and Peter mixes up their visitors schedules. The result is that they suddenly find themselves with a houseful of guests. They are an interesting lot: one fancies himself a handyman an sets about repairing anything in sight while his wife can't help bu calculate the cost of every meal; another is a lush whose wife is constantly ill; while a third couple are quintessential tourists who expect to be escorted everywhere. (thetvdb.com)