My Son, My Son, What Have Ye Done
This David Lynch presents film by Werner Herzog doesn't actually have anything to do with David (except for $) but Werner seems to have absorbed his directing style for this film inspired by true events.
Surreal imagery and strange dialogue make for a stilted but mesmerising viewing experience. I liked it mostly because of Michael Shannon with his boggle eyes and giant head (also great in Runaways and Boardwalk Empire) His character Brad is obviously mentally disturbed but the people around him are ignoring the fact or simply don't see it.
Apparently killing your mother with a samurai sword in a religious fugue isn't that uncommon and since this film there has been more occurrences, most recently the actor Michael Brea (from Ugly Betty) who decapitated his mother while trying to kill a "demon inside her"
YES - cold heart canyon