With high school a distant memory, Jim and Michelle are getting married — and in a hurry, since Jim's grandmother is sick and wants to see him walk down the aisle — prompting Stifler to throw the ultimate bachelor party. And Jim's dad is reliable as ever, doling out advice no one wants to hear.
A poor mechanic is conned into taking the place of a wealthy business magnate so the rich man can take off to work on some major wheeling and dealing. Sure enough, the impostor is trapped in a series of circumstances beyond his control that lead him right to the altar. Once he is wed -- or rather, once the rich businessman is unknowingly wed by proxy, the tycoon returns from his trip with the subsequent surprises in store for all concerned.
Sandy and Alejandra are two young women who live together with Lexa, an artist with a multiple personality who is preparing her new exhibition. however, the romance between these two personalities will be in danger, not only because of their inability to have physical contact but also because of the problems it generates for Lexa and the body they inhabit. therefore, Sandy and Alejandra must decide before it is too late.
