A man with a heavy beard and long hair comes into a barber shop. The barber wets down his hair, does a thorough job of cutting, leaving customer with a big bald patch, then wets down his hair again, and the man leaves with his hair intact as at the start.
It's an early example of using stop-motion for a purel comedic effect. It seems primitive by today's standards, and frankly not terribly funny, but with Melies taking up the shock and magic f such work, some one had to move in a different direction.