It is non-sensical beyond belief. After working on theory for years, a scientist's papers are stolen by his benefactor. The benefactor publicly humiliates him in front of a large audience by slapping him, so the scientist decides, as a kind of therapy to deal with his grief, he will spend the rest of his life as a circus clown, playing an act in which he is slapped over and over again. Apparently the circus audience find this act hilarious, which only goes to show how stupid the filmmakers think we are.
Review of He Who Gets Slapped
