Feeling tired? Fed up? Do you just want the demons to leave you alone? If these situations describe you, consider watching a movie set in a mental asylum. Sure, it might not clear up any of your crippling psychological problems, but it might show you things could always be worse. Here are four of the best mental asylum movies and they might have you questioning your sanity even if you're totally sane.

"One Flew Over The Cuckoo's Nest" The most famous mental asylum movie is also probably the best. It stars Jack Nicholson as R.P. McMurphy, an independent spirit who checks into a mental asylum and starts to shake things up with the people living there, many of whom aren't any crazier than "the average asshole out walkin' the streets." Mac has his work cut out for him, though, because the hospital is being run by a Nurse Ratched, a symbol of fearsome authoritative power who has devil-horned hair to match her evil insides. Will good triumph over evil? If you think you know the answer, remember: It is a crazy house, after all.

"Shock Corridor" A good journalist would do almost anything to get a story, but the journalist in "Shock Corridor" goes farther than any sane person would. He pretends to be a mental patient in order to infiltrate an insane asylum so he can investigate a murder that took place there years ago. Director Sam Fuller pours on the brain-shaking full-color sequences in this black-and-white thriller, so even the most calm and collected audience member might start to feel a bit, uh, "nervous." But unlike our hero, here, the audience will make it out of the asylum psychologically intact. Most of them will, anyway.

"High Anxiety" Mel Brooks's Hitchcock spoof features our hero traveling to "The Psycho-Neurotic Institute for the Very, Very Nervous" as its new administrator. But since this is a suspense movie, he quickly discovers that all is not as it seems. Also he gets crapped on by a bunch of birds. This is a Mel Brooks movie, don't forget.

"Shutter Island" Who better than master visual stylist Martin Scorsese to capture the inner workings of a diseased mind? He does it in both subtle and flamboyant ways in "Shutter Island,"where Leo DiCaprio plays a police detective sent to a mental asylum to investigate a disappearance. What he finds is an insidious conspiracy to perform experiments on the "criminally insane"—or, he might find something far, far worse. If you don't find yourself second guessing your own thoughts after this one, you really are crazy.