The Ninth Configuration takes place in a giant castle where the US Government is housing an experimental center for crazy war veterans and an astronaut who decided he didn't want to go to the moon so bad that he'd just go crazy instead. You still with me? OK. Stacy Keach shows up without a mustache. We are told he is both the new colonel in charge and an expert psychiatrist. (There's a big twist, so I have to be really careful what I say here.)
All in all, this movie has some brilliantly philosophical moments right alongside some ludicrous hijinks. If that doesn't sound good, then get your ears checked.