Ralph Malph is throwing a costume party and the boys are excited about attending until they find that Ralph's parents, as well as Howard and Marion will be chaperones. To make things even less entertaining for poor Richie, he finds that his blind date, Phyllis (Diana Canova) is so tall that not only tower above everybody else, but she is able to be dressed quite convincingly as the Statue of Liberty!
Meanwhile, Fonzie arrives dressed as himself and explains that he has come as "Cool" which everyone agrees with. In an entirely separate situation, Howard gets very annoyed when playing bridge with competitive partners and Marion is extremely inept as Howard himself is quite competitve and likes to win.
A good episode, highlighted by Fonzie dressing up as "Cool", which is very amusing.