i be an old horror buff . i have see some of the more notorious stuff around ( salo and cannibal holocaust and caligula and . ) and but they all more or less about visceral horror . which doesn not work if you help slaughter a few pig . what do work . psychological horror . impend doom you can not prevent . thing you can not see or understand and but that be there right in front of your face . music that shouldn not be scary and but which linger anyway . it a typical and slow move j horror with an atypical idea behind it . that oblivion be actually preferable than immortality . gore doesn not scare me but some idea do . like i say it make me squirm . one of the best horror movie ever make for the patient one .