Hellraiser/Nightmare Fuel


 * The part in Hellraiser III: Hell on Earth where Pinhead, via the Pillar of Souls,.
 * Both Hell on Earth and Inferno have scenes where characters are killed behind closed doors. We just hear really, really awful noises (especially in the latter) as a large amount of blood begins flowing out from under the door. The Engineer first appearing in Inferno could also count.
 * Deader has Amy wake up with a knife in her back. After several frantic minutes, she resorts to slamming a door on the handle, and then begins painfully inching forward to try and slowly pull the blade out.
 * The second film has a mental patient being given a straight razor. As he screams "Get them off me!" he starts carving into his torso, trying to cut the maggots he is imagining out (at several points, it shows things from his point of view, bugs and all). His spilled blood summons the skinless Julia, and the two begin wrestling, and there is just blood flying everywhere. When Julia finally kills the mental patient, he vomits, to add to the Nausea Fuel.
 * To understand the "angel to some" part of Pinhead's boast, see Rob Ager's analysis of the original film here. It's nightmare fuel by itself.