A con artist masquerades as Russian nobility and attempts to seduce the wife of an American diplomat.
A nobleman, posing as a necktie salesman, falls in love with the daughter of a circus puppeteer, even though he is already married to the daughter of his country's war minister.
"Midnight at the Old Mill" has some nice "Guignol" touches with mysterious doctors in black and Ham having to play a corpse at one moment.
