Margaret Hall (Swinton) and her family live an upper middle class life in Tahoe City, California. Her husband is a pilot on the aircraft carrier USS Constellation (CV-64). She is startled to discover that her son Beau (Tucker), a high school senior, has been having a sexual affair with 30-year-old Reno, night club owner Darby Reese (Lucas). Margaret visits Reese's nightclub, The Deep End, to demand that he stay away from her son. That night, Reese secretly visits Beau and the two meet in the boathouse. Beau confronts him about asking his mother for money. The two argue, eventually coming to blows. As Beau returns to the house, Reese leans on a railing, causing it to collapse, and falls into the water, impaling himself on an anchor.