Decidedly weird, The Ninth Configuration is a slow burn of a thriller that gives us Stacy Keach in a dead-on performance as a marine psychiatrist brought in to do his doctoring in a (what else) converted, remote castle in the Pacific Northwest. Namely, he interacts with NASA astronaut-gone-nuts Scott Wilson (equally good, if not better), until it starts to surface that Keach's character may not be altogether there himself. It's One Flew Over the Cuckoo's Nest by way of Jacob's Ladder. Written and directed by William Peter Blatty (The Exorcist). Very capable, though it flounders considerably in the final act. Still worth checking out, though.