When the parents of the Loony family announce their divorce, the rest of the family comes together at their beach house for a week. Dennis, the eldest son, is having marriage troubles of his own, and searches for clues, trap doors, and secret tunnels. Claire, the middle child, is a single mother with a troubled 16-year-old daughter, Jill. The youngest child, Peter, is a hack filmmaker suffering from paralyzing insecurities who establishes an unorthodox romance with a mysterious day care counsellor at the beach.
