Interrogating a Demon

(Originally published on ArchiveOfOurOwn) Sequel to 'Evil Within'. When David Rossi goes to Florida to interrogate a serial killer, he finds that there is more than meets the eye. This killer has been possessed by a demon, who has had numerous previous hosts. Will Rossi be able to keep the demon talking for long enough to let her guard down, or will it manage to escape his grip?