Lou wants to rekindle his relationship with Charlene, but they had a fight and she is mad at him. He talks Mary into throwing a party, so they can meet casually. The problem is that Ted and Georgette are having a fight, Murray has the flu, and Charlene brings a guy half her age to the party. Lou get ugly that things aren't going his way and wrecks any semblance of a party that existed. There are some funny lines, especially when Mary starts calling Lou, Louis (Loo-iss). Penny Marshall makes an appearance as Lou uses her to make Charlene jealous.