The middle-class Trentons have recently moved to Castle Rock from New York City, bringing with them their four-year-old son, Tad. Vic Trenton discovers his wife, Donna, has recently had an affair with a tennis player named Steve Kemp. In the midst of this household tension, Vic's advertising agency, Ad Worx, is failing due to a scandal over a cereal called Red Razberry Zingers. Vic, and his business partner Roger Breakstone, are forced to travel out of town, leaving Tad and Donna at home alone.