Blood Simple/YMMV

"It keys into three common nightmares: (1) You clean and clean but there's still blood all over the place; (2) You know you have committed a murder, but you are not sure quite how or why; (3) You know you have forgotten a small detail that will eventually get you into a lot of trouble."
 * Complete Monster: Visser and Marty
 * High Octane Nightmare Fuel: Imagine yourself.
 * In several other ways, too, well described by Roger Ebert:


 * The scene in which Visser has to pull the knife from his hand also counts, if only because it seems to take forever to remove it.