Roger is a straight-laced, rising politician who joins his girlfriend, to whom he's planning to propose marriage, at her family's lakefront home for a getaway and an introduction to her relatives. When her young, wild brother Todd showers his unique style of affection upon Roger, the trip becomes a living hell for him. Roger must come to terms with the prankster and learn to adjust his uptight, by-the-book nature if he hopes to save his relationship and his career.