Groucho Marx has just finished his turn as guest, and out comes Capote. Similary format to the Tonight Show, the first guest is supposed to sit quietly while the host focuses on the next guest.
But Groucho won’t shut up. And Capote has no idea how to deal with it.
Check the second half when Groucho proposes to Capote! The man had no mercy.
I think Cavett planned it.