10. "Requiem for a Dream"

The dreams of four people shatter as addictions take over their lives. What makes this film so creepy is the fact that it feels real. It presents the life of an addict in a haunting way. Prepare for your emotions to rapidly cycle through sadness, despair, empathy, and anger.

9. "Memento"

This might be the most interesting film on the list. It is about a man who forgets everything the instant it happens. But the film runs backwards, starting at the end and ending at the beginning of the story. It will definitely mess with your mind.

8. "Primal Fear"

This is one of the most underrated movies ever. It should be more popular than it is, even though it is decently well-known. "Primal Fear" is a courtroom drama, but it is so much more than that. The acting is impeccable, and the ending will surprise even the best of plot-predictors.

7. "Fight Club"

I can't really talk about this one, I would be breaking the rules. Just watch it and lose your mind.

6. "The Machinist"

Paranoia and delusion reign in this movie about an insomniac who goes completely insane. Christian Bale is terrific, and it will definitely creep you out.

5. "Psycho"

This one is a classic. The shower scene is one of the most legendary scenes of all time. It will make you go psycho. Plus, are there any bad Alfred Hitchcock movies?

4. "Shutter Island"

This one is flat-out creepy. An escaped conflict? Check. A horrifying insane asylum? Check. A horrifying insane asylum on an even more horrifying island? Check. You may need a few days to recover after watching this one, so I suggest taking a vacation from school or work if you want to watch it.

3. "The Manchurian Candidate"

While not as psychologically as creepy as the others on this list, the Manchurian Candidate is a classic. U.S. soldiers are captured during the Korean War and are brainwashed by communists. This movie came out in 1962, right when communism was one of America's biggest fears.

2. "Se7en"

If you like disturbing movies about serial killers, you would probably like "Se7en." Detectives work to find a killer who uses the seven deadly sins to kill his victims. Disturbing, gross, and interesting, "Se7en" is a great option for any fan of thriller movies.

1. "Silence of the Lambs"

This was easy. Hannibal Lecter is one of the best villains of all time. The relationship between Hannibal and Clarice Sterling is amazing to watch, as Hannibal seems to grow a liking to her. They can relate on some level, yet they chose to take completely different paths. This film features one of the best escapes, plot twists, acting performances, and storylines of all time.