In the meantime he has killed and stands trial for murder but the Warrens suggest a novel defence: "Not guilty by reason of Demonic possession".
CW: suicide
When a franchise has brought in over two billion dollars (yes you read that right) they're just going to keep making them.
Here it mixes the slightly hokey exorcism power couple shtick with a bit of Detective work rather than the usual somewhat location bound exorcism formula of the first two movies.
It's complete schlock though and just doesn't have the appeal they had 4/10, dull and preposterous. Like I say though they're going to keep making these.