Learning what's in this film is what made me totally give up secular music. The series that convinced me was much more thorough, and it can also be found on Youtube. It's called Hells Bells, and I'd recommend everyone to watch it. This is quite a bit shorter, but disturbing nonetheless.
Do What You Want? (Exposing Satanism in Society) [Full Version]
There is a principle which is a bar against all information, which is proof against all argument, and which cannot fail to keep man in everlasting ignorance. That principle is condemnation before investigation. ~ Edmund Spenser