A Hole in the Head (Trepanation Documentary)

A Hole in the Head is a documentary about people who... drill holes in their heads. These nuts think it will raise them to an altered state of consciousness. An entertaining video.

Informative links:
A Hole in the Head at IMDB
One man's diary of a trepanation procedure (contains pictures of blood)
History of trepanation at the International Trepanation Advocacy Group (website has music)