When Pam and Greg get their parents together it turns into one disaster after another. The hippie Fockers are the direct opposite of the uptight Byrneses. With one pitfall after the next, the film takes awkward in-law experiences to new heights.

Paul is a regular guy who is engaged to marry Karen. Shortly before the wedding, Paul's friends throw him a bachelor party. Paul strikes up a conversation with one of the dancers, Becky, and the next morning, he wakes up bleary-eyed with a massive hangover -- and Becky in bed next to him. Karen comes over and Paul attempts to explain some incriminating evidence with a few white lies, but this messy situation gets messier when Paul runs into Becky...