Compared are the cut UK-DVD by Divid 2000 (BBFC 18) and the uncut German DVD von Raptor (not rated).
Difference: 1 scene with a length of 43 seconds.
There are three available versions of Demons in the UK. The DVD by Divid 2000 lacks a scene of cocaine getting scraped off a young woman's breasts with a razor blade. The VHS by Avatar or Caleco also lack this scene. But these release also lack some violent footage (to the comparison). The DVDs by Platinum Media Corporation and Blackhorse Entertainment are completely uncensored.
The guy scrapes some the cocaine off the girl's breasts with a razor blade. He accidentally cuts her in the process which makes her very upset. The guy blames the cocaine for it. He explains he was so high, he couldn't concentrate anymore.