I hope you mean La Cage Aux Folles (not "Follies" which will connotate a spoof of the French comedy). Are you looking for a rip off of that particular play or comedies on gay themes in general? If so, how about the March of the Falsettos, and The Boys in the Band? And how about the mother of all modern gay plays, Torch Song Trilogy? And if you're really up to it, try researching for a German play called "Victor und Victoria" which was made into a movie by UFA in 1942 or 1943 and which became the basis for the movie "Victoria." (Lordy lord, the trivia we theater folks accumulate over the years!)