* AllThereInTheManual: In the novelization, the town is pretty much abandoned.
* CompleteMonster: [[TheHeavy The Collector]] is a [[DemonLordsAndArchdevils demon]] BountyHunter searching for the final [[ArtifactOfDoom key]] his species needs in order to bring about {{the end of the world|AsWeKnowIt}}. The Collector is a soulless monster who hides behind a FauxAffablyEvil veneer and delights in joking [[TheCorrupter as he leads his victims to damnation]]. When Frank Brayker, a Demon Knight entrusted to guard the final key from the demons, seals himself in a boardinghouse alongside its residents, the Collector summons an army of demons and lays siege. Through his psychic powers, the Collector is able to [[DemonicPossession possess]] the humans in the boardinghouse by [[DealWithTheDevil tempting them with their deepest desires]]. However, the Collector [[ILied never provides what he offers]] and instead the boardinghouse residents, such as [[spoiler:Cordelia and Uncle Wally]] are turned into low-level demons, [[AndIMustScream tortured souls]] trapped in monstrous bodies that the Collector controls. At the film's climax, [[spoiler:[[WouldHurtAChild the Collector possesses a little boy through a comic book]] and uses him to mortally wound Brayker.]] With the last key in his possession, the Collector merrily chats with the sole survivor, Jeryline, about how humanity [[ToServeMan will be reduced to leftovers]], and attempts to cut out her heart as a memento after he fails to corrupt her.
* EvilIsSexy: The Collector. Zane loved the bald look so much he went with it for a long while.
* FoeYay: The Collector and Jeryline. It's pretty one-sided, and The Collector isn't exactly subtle about it.
* IAmNotShazam: You would be excused if you thought that the movie title refers to the villain, since he's a demon, and a high ranking one, so, in a sense, a knight. However, it's actually the hero's title, although he's only briefly named as such by the villain ("No one's brought back a demon knight before. Alive, anyway.")
* JustHereForGodzilla: Billy Zane's scene stealing role as The Collector is what most people seem to seek the movie out for.
* MagnificentBastard: The Collector's modus operandi is to zero in on the FatalFlaw of the residents and tempt them with ''anything'' he can use to get them to come over to his side, including but not limited to attractive women, promises of love and friendship, and offers of freedom from the hotel. And through it all Billy Zane is [[LargeHam having a lot of fun playing the part]].
* NarmCharm: Let's face it, given the franchise, this is to be expected.
* ShoutOut: The name of the town is Wormwood, which is from [[Literature/TheBible Book Of Revelation]].
** According to the novelization, Cordelia was the town's teacher before a scandal, similar to the actress' role in AmericanGothic.
----