'''''Wolfen''''' is a 1981 horror-mystery film [[TheFilmOfTheBook based]] upon the novel by Whitley Strieber. The plot follows NYPD Detective Dewey Wilson, who is assigned to solve a bizarre series of violent murders in which it appears the victims were killed by animals. In his investigation, Wilson learns of an Indian legend about wolf spirits, and that there may be predatory shapeshifters living in the vicinity.

The film was released the same year as ''Film/AnAmericanWerewolfInLondon'' and ''Film/TheHowling''. While ''Wolfen'' didn't meet the success of those films, it was well received by critics and is somewhat of a CultClassic.
!! The following tropes can be used to describe the film:

* BizarreAlienSenses: Possibly the first film to use thermographic footage to illustrate this trope.
* BlackComedy: There are some moments of this.
* CulturalPosturing: The film is pretty low key in this regard until the last act, when the protagonist arrives shell shocked at a Native American bar after his friend was mauled by a wolf. The Native American characters (one of whom is a Latino) begin rapid fire exposition/cultural posturing as they affirm their way of life is better, the wolf spirits are above our morality, white man's technology has failed him, and he's basically facing gods dishing out divine punishment.
* DangerTakesABackSeat: At one point, a wolfen is shown to be hiding in the backseat of a detectives car.
* {{Gorn}}: While it's not quite so gory by today's standards, the wolves do rip out people's throats, bite off hands, bite off heads, etc.
* LosingYourHead: Near the end one character's throat is torn out by a wolf, resulting in his head ending up separate from his body. When it's obvious from the attempted mouthing of words and blinking that the head is still functional, [[ShoottheFuelTank a colleague shoots the car he's next to,]] [[MercyKill putting him out of his misery]].
* MagicalNativeAmerican: {{Subverted|Trope}}. See TransformationSequence below.
* NothingIsScarier: You don't even get to see the beasts until halfway through the film.
* OhCrap: Two such moments happen during the climax of the film. One is particularly amusing as a wolf [[DangerTakesABackseat materializes in a car]] with one of the characters.
* RealAfterAll: The characters get to have a moment where it seems the whole big to-do was a hoax, then they walk outside and they learn just how dangerous the wolfen are.
* SavageWolves: The monsters of the story are mystical wolf-like creatures called "Wolfen".
* SomewhereAMammalogistIsCrying: Wolves apparently have thermographic vision in this Verse. Not just wolfen, but ''regular'' wolves.
* SparedByTheAdaptation: Several of the Wolfen pack
* ThisIsWhatTheBuildingWillLookLike: Dewey smashes the model of the building that was going to be build on wolfen's land, so that they'll realizes that he isn't a threat and stop attacking.
* TransformationSequence: {{Subverted|Trope}}. Eddie Holt strips naked and makes a bunch of lupine noises and gestures, but it appears he's just messing with Dewey's head.