Fallen is a 1998 horror / thriller film, directed by Gregory Hoblit.

Police detective John Hobbes, played by actor Denzel Washington, gains notoriety for capturing wily serial killer Edgar Reese. Immediately after Reese is executed, Hobbes is plunged into the case of a killer who seems to be copycatting Reese. Hobbes's investigation soon leads him to discover that this is no copycat, however; Reese -- or at least the evil that was inside him -- has managed to survive the execution, and is jumping from one body to another to continue killing, and to terrorize Hobbes himself. As the battle of wits between good and evil becomes increasingly personal for Hobbes, he must turn to a theologian's theories on demonology as his only hope for defeating the demon that was inside Reese.

In the film, the Rolling Stones lyric "Time Is on My Side" is used as an ominous theme repeatedly sung by Azazel, the demon who had possessed Reese. Also, due to Azazel's ability to switch bodies, the villain is performed by a different actor in almost every scene (or sometimes by many actors in the same scene).

Denzel Washington narrates throughout the film. At the end of the film, the final line of the narration reveals a twist ending.

The Hidden and The Hidden II are films with a similar premise, however the body hopping antagonist is an alien life form rather than a supernatural demon.