Mazel tov! It's Henry and Karen's Big Fat Jewish Wedding. The whole gang is there: Henry's family and Henry's other family. You know, Paulie, Jimmy, Tommy, Frenchy, even Morrie in his terrible wig.
Henry's mafia family showers the newlyweds with cash. As Karen and Henry share their first dance as a married couple, she worries that somebody might steal the bag with all of the gifts. Henry just laughs.
Cut to Karen at home with her parents. Her mom is miffed that Henry hasn't called. She's not stoked that Karen and Henry are still crashing at their place, either.
Karen and her mom have a big fight. Her mom is not happy about the whole Henry-never-coming-home-at-night thing, either, but Karen stands by her man.
Later, much later, like dawn later, Henry comes home looking worse for wear. Karen's mom immediately starts chewing him out.
Henry laughs, goes back to his ride, and drives away. Well, that's one way to deal with your in-laws.