"Fools" is Neil Simon's nineteenth play in twenty years—and his weakest. It's a fable about a Ukrainian village whose inhabitants are under a curse of stupidity. Apparently Simon is trying to say something about how society can wrongly label some of its groups; maybe this is his allegory on race and IQ. If so, he's wrecked an important subject by trying to be a folk artist, forgetting that he is a folk artist in his real plays like "The Odd Couple" and "The Sunshine Boys." "Fools" is so cute it commits cutecide. Wait till next year.