Rurouni Kenshin/Nightmare Fuel


 * Just about everything that surrounds Jin-E. The man has his Knight of Cerebus title very well deserved, considering what he did to Kaoru and how he managed to bring out Kenshin's darkest side afloat. Aside from a Blood Knight, he is also a hypnotist. He subjected Kaoru to a nasty hypnotic trick which put her in a telepathic trance...that forced her whole body into muscular paralysis. This also includes the muscles that allow her to breathe. No wonder Kenshin TOTALLY cracked and went Battousai, as this girl who was under his protectorate and he was starting to fall in love with would die in a truly horrible and underserved manner unless he murdered Jin-E.
 * Also, anything in regards to  as well as the details we have in regards to   Eeeeeeeeeew.
 * The Psychological Horror implications of  going to   behind  's back brings out the Adult Fear card with incredible strength. Think about it:
 * Shishio's final meltdown. Both literally and figurately. The way he was screaming and clawing at his chest... ugh. And then he
 * From the anime only, but still both heartbreaking and horrifying: . Specially three scenes: ,  , and then.
 * Soujiro's past. It was already bad enough that his stepsiblings abused the crap outta him for being an illegitimate child, but the scene in which  is genuinely terrifying, and specially in the anime due to the very effective animation and pacing.