The Entity (The Entity)

The Entity was the titular antagonist of a horror movie of the same name, though it was never referred to by this title in the film (in fact outwith the usual claims of "Satan" the monster was never given a name).

The Entity was a violent and invisible ghost or demon that shared similiar qualities to the medieval incubus as well as poltergeists - the creature is infamous for its repeated rape of the female protagonist of the movie and although highly controversial the events are supposedly based upon events that occured in reality (though much like the Amityvile Horror or other paranormal events truth and fiction often blur).