A group of hard-partying, fun-loving guys throw their recently engaged buddy Ron the world's greatest bachelor party in Miami to mourn the end of his single life. Feeling threatened that Ron could ruin his chances of advancing within the family business, Todd, his future brother-in-law, schemes to sabotage the marriage by getting Ron to cheat with a bevy of beautiful women at the bachelor party, and the more Ron stays true, the more extreme Todd's tactics become.