Psychological horror is a special flavor of twisted that leaves out, I?d say, about 90% of all ?horror? movies. Slasher flicks, blatant scares (even effective ones) and gory schlock account for most horror out there; mind-twisting thrillers that get to you are far fewer, but satisfying when you can find one.
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10 Maniacally Mind-Twisting Movies For A Heady Halloween