Dance Madness

Dance Madness is a 1926 American silent comedy film directed by Robert Z. Leonard based upon a script by Frederica Sagor. The film starred Claire Windsor, Conrad Nagel, and Hedda Hopper. "Dance Madness" is now considered to be a lost film.
According to the credited screenwriter, Frederica Sagor, "Dance Madness" was "patently a rewrite" of "The Guardsman", a work by Ferenc Molnár that was later directly adapted for film. Sagor notes the screenplay was not written by her, but by Alice D. G. Miller, and she only provided script rewrites.
Plot.
May (Claire Windsor) is married to Roger (Conrad Nagel), an alcoholic hell-raiser. During one of their riotous parties, she tests his fidelity by impersonating a notorious masked dancer (Hedda Hopper) and trying to seduce him.