A couple have returned to this country after three years colonial service in Africa with their teenage son and daughter. The action begins with the impending arrival of the children who eventually decide to throw a party exclusively for their own friends. They urge their parents to leave them to visit their grandmother for a few days. The parents decide to go away and the ensuing period is a chapter of accidents. To crown it all, the cook walks out and they cancel the party without being able to notify their guests. Their knowing butler invents a series of infectious diseases in the household, informing all the guests as they arrive at the door. The parents return home unexpectedly to an overwhelming reception and the tales of woe.