Two men dressed devil's outfits juggle back to back. They have black balaclava style head gear with little horns attached - great outfits! They run around each other still juggling then throw clubs at each other. They perform various juggling stunts: taking the clubs from each other, throwing clubs between the others' legs etc. We then see some of the routine in slow motion. They look quite bizarre.
Intertitle reads: "Regular demons - in the slow-time of our ultra-rapid camera, taking 160 pictures per second." They juggle back to back. They look like twins but that could just be the outfits.
Was an item in Eve's Film Review issue number 543.
Note: flash-frame intertitles.