Frank (Keanu Reeves) and Lindsay (Winona Ryder) have a lot in common: they both hate the bride, the groom, the wedding, themselves, and most especially each other. For 72 hours, they are trespassers in paradise. But the weekend's relentless events continually force them together, and if you fight with someone long enough, anything can happen. When the instinct to love proves very difficult to kill, they must decide which is stronger: their hearts or their common sense.